From c34fa261b0ac3a862ccd3f71ee55a16b920dfc83 Mon Sep 17 00:00:00 2001
From: H Hartley Sweeten <hartleys@visionengravers.com>
Date: Tue, 23 Oct 2012 13:22:37 -0700
Subject: [PATCH] staging: comedi: remove inline alloc_private()

This inline function has a very generic name and it's only a
wrapper around a simple kzalloc(). Since the inline function
does not save any lines-of-code, instead of renaming it just
remove it and do the kzalloc() directly.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Cc: Ian Abbott <abbotti@mev.co.uk>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/comedi/comedidev.h             |  8 --------
 drivers/staging/comedi/drivers/8255_pci.c      |  8 ++++----
 .../comedi/drivers/addi-data/addi_common.c     |  8 ++++----
 drivers/staging/comedi/drivers/adl_pci6208.c   |  8 ++++----
 drivers/staging/comedi/drivers/adl_pci9111.c   |  8 ++++----
 drivers/staging/comedi/drivers/adl_pci9118.c   |  8 ++++----
 drivers/staging/comedi/drivers/adq12b.c        |  8 ++++----
 drivers/staging/comedi/drivers/adv_pci1710.c   |  8 ++++----
 drivers/staging/comedi/drivers/adv_pci1723.c   |  8 ++++----
 drivers/staging/comedi/drivers/adv_pci_dio.c   |  8 ++++----
 drivers/staging/comedi/drivers/aio_aio12_8.c   |  8 ++++----
 drivers/staging/comedi/drivers/amplc_dio200.c  | 17 ++++++++---------
 drivers/staging/comedi/drivers/amplc_pc236.c   | 17 ++++++++---------
 drivers/staging/comedi/drivers/amplc_pci224.c  | 18 ++++++++----------
 drivers/staging/comedi/drivers/amplc_pci230.c  |  9 ++++-----
 drivers/staging/comedi/drivers/cb_das16_cs.c   |  8 ++++----
 drivers/staging/comedi/drivers/cb_pcidas.c     |  8 ++++----
 drivers/staging/comedi/drivers/cb_pcidas64.c   |  8 ++++----
 drivers/staging/comedi/drivers/cb_pcidda.c     |  8 ++++----
 drivers/staging/comedi/drivers/cb_pcimdas.c    |  8 ++++----
 drivers/staging/comedi/drivers/cb_pcimdda.c    |  8 ++++----
 drivers/staging/comedi/drivers/comedi_bond.c   |  8 ++++----
 .../staging/comedi/drivers/comedi_parport.c    |  8 ++++----
 drivers/staging/comedi/drivers/comedi_test.c   |  8 ++++----
 drivers/staging/comedi/drivers/daqboard2000.c  |  8 ++++----
 drivers/staging/comedi/drivers/das08.c         | 18 ++++++++----------
 drivers/staging/comedi/drivers/das08_cs.c      |  9 ++++-----
 drivers/staging/comedi/drivers/das16.c         |  8 ++++----
 drivers/staging/comedi/drivers/das16m1.c       |  8 ++++----
 drivers/staging/comedi/drivers/das1800.c       |  8 ++++----
 drivers/staging/comedi/drivers/das6402.c       |  8 ++++----
 drivers/staging/comedi/drivers/das800.c        |  8 ++++----
 drivers/staging/comedi/drivers/dmm32at.c       |  8 ++++----
 drivers/staging/comedi/drivers/dt2801.c        |  8 ++++----
 drivers/staging/comedi/drivers/dt2811.c        |  8 ++++----
 drivers/staging/comedi/drivers/dt2814.c        |  8 ++++----
 drivers/staging/comedi/drivers/dt2815.c        |  8 ++++----
 drivers/staging/comedi/drivers/dt282x.c        |  8 ++++----
 drivers/staging/comedi/drivers/dt3000.c        |  8 ++++----
 drivers/staging/comedi/drivers/dt9812.c        |  8 ++++----
 drivers/staging/comedi/drivers/dyna_pci10xx.c  |  8 ++++----
 drivers/staging/comedi/drivers/fl512.c         |  8 ++++----
 drivers/staging/comedi/drivers/gsc_hpdi.c      |  8 ++++----
 drivers/staging/comedi/drivers/icp_multi.c     |  8 ++++----
 drivers/staging/comedi/drivers/ii_pci20kc.c    |  8 ++++----
 drivers/staging/comedi/drivers/jr3_pci.c       |  8 ++++----
 drivers/staging/comedi/drivers/me4000.c        |  8 ++++----
 drivers/staging/comedi/drivers/me_daq.c        |  8 ++++----
 drivers/staging/comedi/drivers/mpc624.c        |  8 ++++----
 drivers/staging/comedi/drivers/multiq3.c       |  8 ++++----
 drivers/staging/comedi/drivers/ni_6527.c       |  8 ++++----
 drivers/staging/comedi/drivers/ni_65xx.c       |  8 ++++----
 drivers/staging/comedi/drivers/ni_660x.c       |  9 ++++-----
 drivers/staging/comedi/drivers/ni_670x.c       |  8 ++++----
 drivers/staging/comedi/drivers/ni_at_a2150.c   |  8 ++++----
 drivers/staging/comedi/drivers/ni_at_ao.c      |  8 ++++----
 drivers/staging/comedi/drivers/ni_atmio16d.c   |  8 ++++----
 drivers/staging/comedi/drivers/ni_daq_dio24.c  |  8 ++++----
 drivers/staging/comedi/drivers/ni_labpc.c      | 17 ++++++++---------
 drivers/staging/comedi/drivers/ni_labpc_cs.c   |  9 ++++-----
 drivers/staging/comedi/drivers/ni_mio_common.c |  9 ++++-----
 drivers/staging/comedi/drivers/ni_pcidio.c     |  8 ++++----
 drivers/staging/comedi/drivers/pcl711.c        |  8 ++++----
 drivers/staging/comedi/drivers/pcl726.c        |  8 ++++----
 drivers/staging/comedi/drivers/pcl812.c        |  8 ++++----
 drivers/staging/comedi/drivers/pcl816.c        |  8 ++++----
 drivers/staging/comedi/drivers/pcl818.c        |  8 ++++----
 drivers/staging/comedi/drivers/pcm3724.c       |  8 ++++----
 drivers/staging/comedi/drivers/pcmad.c         |  8 ++++----
 drivers/staging/comedi/drivers/pcmda12.c       |  8 ++++----
 drivers/staging/comedi/drivers/pcmmio.c        |  8 ++++----
 drivers/staging/comedi/drivers/pcmuio.c        |  8 ++++----
 drivers/staging/comedi/drivers/poc.c           |  8 ++++----
 drivers/staging/comedi/drivers/rtd520.c        |  8 ++++----
 drivers/staging/comedi/drivers/rti800.c        |  8 ++++----
 drivers/staging/comedi/drivers/rti802.c        |  8 ++++----
 drivers/staging/comedi/drivers/s526.c          |  8 ++++----
 drivers/staging/comedi/drivers/s626.c          |  8 ++++----
 drivers/staging/comedi/drivers/serial2002.c    |  8 ++++----
 drivers/staging/comedi/drivers/skel.c          |  8 ++++----
 80 files changed, 336 insertions(+), 356 deletions(-)

diff --git a/drivers/staging/comedi/comedidev.h b/drivers/staging/comedi/comedidev.h
index 100ea0b0772c..78a44fc46ef2 100644
--- a/drivers/staging/comedi/comedidev.h
+++ b/drivers/staging/comedi/comedidev.h
@@ -415,14 +415,6 @@ struct comedi_lrange {
 
 /* some silly little inline functions */
 
-static inline int alloc_private(struct comedi_device *dev, int size)
-{
-	dev->private = kzalloc(size, GFP_KERNEL);
-	if (!dev->private)
-		return -ENOMEM;
-	return 0;
-}
-
 static inline unsigned int bytes_per_sample(const struct comedi_subdevice *subd)
 {
 	if (subd->subdev_flags & SDF_LSAMPL)
diff --git a/drivers/staging/comedi/drivers/8255_pci.c b/drivers/staging/comedi/drivers/8255_pci.c
index af76e4e3e405..6a4f2a1ea662 100644
--- a/drivers/staging/comedi/drivers/8255_pci.c
+++ b/drivers/staging/comedi/drivers/8255_pci.c
@@ -235,10 +235,10 @@ static int pci_8255_attach_pci(struct comedi_device *dev,
 	dev->board_ptr = board;
 	dev->board_name = board->name;
 
-	ret = alloc_private(dev, sizeof(*devpriv));
-	if (ret)
-		return ret;
-	devpriv = dev->private;
+	devpriv = kzalloc(sizeof(*devpriv), GFP_KERNEL);
+	if (!devpriv)
+		return -ENOMEM;
+	dev->private = devpriv;
 
 	ret = comedi_pci_enable(pcidev, dev->board_name);
 	if (ret)
diff --git a/drivers/staging/comedi/drivers/addi-data/addi_common.c b/drivers/staging/comedi/drivers/addi-data/addi_common.c
index 1d4ecfec447f..10ae752f21c8 100644
--- a/drivers/staging/comedi/drivers/addi-data/addi_common.c
+++ b/drivers/staging/comedi/drivers/addi-data/addi_common.c
@@ -1482,10 +1482,10 @@ static int i_ADDI_Attach(struct comedi_device *dev, struct comedi_devconfig *it)
 	unsigned char pci_bus, pci_slot, pci_func;
 	int i_Dma = 0;
 
-	ret = alloc_private(dev, sizeof(*devpriv));
-	if (ret)
-		return ret;
-	devpriv = dev->private;
+	devpriv = kzalloc(sizeof(*devpriv), GFP_KERNEL);
+	if (!devpriv)
+		return -ENOMEM;
+	dev->private = devpriv;
 
 	if (!pci_list_builded) {
 		v_pci_card_list_init(this_board->i_VendorId, 1);	/* 1 for displaying the list.. */
diff --git a/drivers/staging/comedi/drivers/adl_pci6208.c b/drivers/staging/comedi/drivers/adl_pci6208.c
index de3625224c88..343422abcd31 100644
--- a/drivers/staging/comedi/drivers/adl_pci6208.c
+++ b/drivers/staging/comedi/drivers/adl_pci6208.c
@@ -191,10 +191,10 @@ static int pci6208_attach_pci(struct comedi_device *dev,
 	dev->board_ptr = boardinfo;
 	dev->board_name = boardinfo->name;
 
-	ret = alloc_private(dev, sizeof(*devpriv));
-	if (ret)
-		return ret;
-	devpriv = dev->private;
+	devpriv = kzalloc(sizeof(*devpriv), GFP_KERNEL);
+	if (!devpriv)
+		return -ENOMEM;
+	dev->private = devpriv;
 
 	ret = comedi_pci_enable(pcidev, dev->board_name);
 	if (ret)
diff --git a/drivers/staging/comedi/drivers/adl_pci9111.c b/drivers/staging/comedi/drivers/adl_pci9111.c
index a87192ac2846..aa55443742ca 100644
--- a/drivers/staging/comedi/drivers/adl_pci9111.c
+++ b/drivers/staging/comedi/drivers/adl_pci9111.c
@@ -889,10 +889,10 @@ static int pci9111_attach_pci(struct comedi_device *dev,
 	comedi_set_hw_dev(dev, &pcidev->dev);
 	dev->board_name = dev->driver->driver_name;
 
-	ret = alloc_private(dev, sizeof(*dev_private));
-	if (ret)
-		return ret;
-	dev_private = dev->private;
+	dev_private = kzalloc(sizeof(*dev_private), GFP_KERNEL);
+	if (!dev_private)
+		return -ENOMEM;
+	dev->private = dev_private;
 
 	ret = comedi_pci_enable(pcidev, dev->board_name);
 	if (ret)
diff --git a/drivers/staging/comedi/drivers/adl_pci9118.c b/drivers/staging/comedi/drivers/adl_pci9118.c
index 4eca8764685f..4bcc5b1171d9 100644
--- a/drivers/staging/comedi/drivers/adl_pci9118.c
+++ b/drivers/staging/comedi/drivers/adl_pci9118.c
@@ -1923,10 +1923,10 @@ static int pci9118_attach(struct comedi_device *dev,
 	else
 		master = 1;
 
-	ret = alloc_private(dev, sizeof(*devpriv));
-	if (ret)
-		return ret;
-	devpriv = dev->private;
+	devpriv = kzalloc(sizeof(*devpriv), GFP_KERNEL);
+	if (!devpriv)
+		return -ENOMEM;
+	dev->private = devpriv;
 
 	pcidev = pci9118_find_pci(dev, it);
 	if (!pcidev)
diff --git a/drivers/staging/comedi/drivers/adq12b.c b/drivers/staging/comedi/drivers/adq12b.c
index bdc5ebce8774..f7950dfe2ddb 100644
--- a/drivers/staging/comedi/drivers/adq12b.c
+++ b/drivers/staging/comedi/drivers/adq12b.c
@@ -243,10 +243,10 @@ static int adq12b_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 	}
 	dev->iobase = iobase;
 
-	ret = alloc_private(dev, sizeof(*devpriv));
-	if (ret)
-		return ret;
-	devpriv = dev->private;
+	devpriv = kzalloc(sizeof(*devpriv), GFP_KERNEL);
+	if (!devpriv)
+		return -ENOMEM;
+	dev->private = devpriv;
 
 	devpriv->unipolar = unipolar;
 	devpriv->differential = differential;
diff --git a/drivers/staging/comedi/drivers/adv_pci1710.c b/drivers/staging/comedi/drivers/adv_pci1710.c
index 322d0118dcca..4161cb6be488 100644
--- a/drivers/staging/comedi/drivers/adv_pci1710.c
+++ b/drivers/staging/comedi/drivers/adv_pci1710.c
@@ -1273,10 +1273,10 @@ static int pci1710_attach_pci(struct comedi_device *dev,
 	dev->board_ptr = this_board;
 	dev->board_name = this_board->name;
 
-	ret = alloc_private(dev, sizeof(*devpriv));
-	if (ret)
-		return ret;
-	devpriv = dev->private;
+	devpriv = kzalloc(sizeof(*devpriv), GFP_KERNEL);
+	if (!devpriv)
+		return -ENOMEM;
+	dev->private = devpriv;
 
 	ret = comedi_pci_enable(pcidev, dev->board_name);
 	if (ret)
diff --git a/drivers/staging/comedi/drivers/adv_pci1723.c b/drivers/staging/comedi/drivers/adv_pci1723.c
index 3c932e7309bc..d14ddcb17520 100644
--- a/drivers/staging/comedi/drivers/adv_pci1723.c
+++ b/drivers/staging/comedi/drivers/adv_pci1723.c
@@ -244,10 +244,10 @@ static int pci1723_attach_pci(struct comedi_device *dev,
 	comedi_set_hw_dev(dev, &pcidev->dev);
 	dev->board_name = dev->driver->driver_name;
 
-	ret = alloc_private(dev, sizeof(*devpriv));
-	if (ret)
-		return ret;
-	devpriv = dev->private;
+	devpriv = kzalloc(sizeof(*devpriv), GFP_KERNEL);
+	if (!devpriv)
+		return -ENOMEM;
+	dev->private = devpriv;
 
 	ret = comedi_pci_enable(pcidev, dev->board_name);
 	if (ret)
diff --git a/drivers/staging/comedi/drivers/adv_pci_dio.c b/drivers/staging/comedi/drivers/adv_pci_dio.c
index 8fa61592bbfe..47a7584d291f 100644
--- a/drivers/staging/comedi/drivers/adv_pci_dio.c
+++ b/drivers/staging/comedi/drivers/adv_pci_dio.c
@@ -1108,10 +1108,10 @@ static int pci_dio_attach_pci(struct comedi_device *dev,
 	dev->board_ptr = this_board;
 	dev->board_name = this_board->name;
 
-	ret = alloc_private(dev, sizeof(*devpriv));
-	if (ret)
-		return ret;
-	devpriv = dev->private;
+	devpriv = kzalloc(sizeof(*devpriv), GFP_KERNEL);
+	if (!devpriv)
+		return -ENOMEM;
+	dev->private = devpriv;
 
 	ret = comedi_pci_enable(pcidev, dev->board_name);
 	if (ret)
diff --git a/drivers/staging/comedi/drivers/aio_aio12_8.c b/drivers/staging/comedi/drivers/aio_aio12_8.c
index 8acf60d0f20d..601f03d5897f 100644
--- a/drivers/staging/comedi/drivers/aio_aio12_8.c
+++ b/drivers/staging/comedi/drivers/aio_aio12_8.c
@@ -212,10 +212,10 @@ static int aio_aio12_8_attach(struct comedi_device *dev,
 	}
 	dev->iobase = iobase;
 
-	ret = alloc_private(dev, sizeof(*devpriv));
-	if (ret)
-		return ret;
-	devpriv = dev->private;
+	devpriv = kzalloc(sizeof(*devpriv), GFP_KERNEL);
+	if (!devpriv)
+		return -ENOMEM;
+	dev->private = devpriv;
 
 	ret = comedi_alloc_subdevices(dev, 4);
 	if (ret)
diff --git a/drivers/staging/comedi/drivers/amplc_dio200.c b/drivers/staging/comedi/drivers/amplc_dio200.c
index 556c63304324..35cd3cbb3bec 100644
--- a/drivers/staging/comedi/drivers/amplc_dio200.c
+++ b/drivers/staging/comedi/drivers/amplc_dio200.c
@@ -1339,10 +1339,10 @@ static int dio200_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 
 	dev_info(dev->class_dev, DIO200_DRIVER_NAME ": attach\n");
 
-	ret = alloc_private(dev, sizeof(*devpriv));
-	if (ret)
-		return ret;
-	devpriv = dev->private;
+	devpriv = kzalloc(sizeof(*devpriv), GFP_KERNEL);
+	if (!devpriv)
+		return -ENOMEM;
+	dev->private = devpriv;
 
 	/* Process options and reserve resources according to bus type. */
 	if (is_isa_board(thisboard)) {
@@ -1378,7 +1378,6 @@ static int __devinit dio200_attach_pci(struct comedi_device *dev,
 				       struct pci_dev *pci_dev)
 {
 	struct dio200_private *devpriv;
-	int ret;
 
 	if (!DO_PCI)
 		return -EINVAL;
@@ -1386,10 +1385,10 @@ static int __devinit dio200_attach_pci(struct comedi_device *dev,
 	dev_info(dev->class_dev, DIO200_DRIVER_NAME ": attach pci %s\n",
 		 pci_name(pci_dev));
 
-	ret = alloc_private(dev, sizeof(*devpriv));
-	if (ret)
-		return ret;
-	devpriv = dev->private;
+	devpriv = kzalloc(sizeof(*devpriv), GFP_KERNEL);
+	if (!devpriv)
+		return -ENOMEM;
+	dev->private = devpriv;
 
 	dev->board_ptr = dio200_find_pci_board(pci_dev);
 	if (dev->board_ptr == NULL) {
diff --git a/drivers/staging/comedi/drivers/amplc_pc236.c b/drivers/staging/comedi/drivers/amplc_pc236.c
index 56354aa2708e..52541c95ba65 100644
--- a/drivers/staging/comedi/drivers/amplc_pc236.c
+++ b/drivers/staging/comedi/drivers/amplc_pc236.c
@@ -510,10 +510,10 @@ static int pc236_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 
 	dev_info(dev->class_dev, PC236_DRIVER_NAME ": attach\n");
 
-	ret = alloc_private(dev, sizeof(*devpriv));
-	if (ret)
-		return ret;
-	devpriv = dev->private;
+	devpriv = kzalloc(sizeof(*devpriv), GFP_KERNEL);
+	if (!devpriv)
+		return -ENOMEM;
+	dev->private = devpriv;
 
 	/* Process options according to bus type. */
 	if (is_isa_board(thisboard)) {
@@ -546,7 +546,6 @@ static int __devinit pc236_attach_pci(struct comedi_device *dev,
 				      struct pci_dev *pci_dev)
 {
 	struct pc236_private *devpriv;
-	int ret;
 
 	if (!DO_PCI)
 		return -EINVAL;
@@ -554,10 +553,10 @@ static int __devinit pc236_attach_pci(struct comedi_device *dev,
 	dev_info(dev->class_dev, PC236_DRIVER_NAME ": attach pci %s\n",
 		 pci_name(pci_dev));
 
-	ret = alloc_private(dev, sizeof(*devpriv));
-	if (ret)
-		return ret;
-	devpriv = dev->private;
+	devpriv = kzalloc(sizeof(*devpriv), GFP_KERNEL);
+	if (!devpriv)
+		return -ENOMEM;
+	dev->private = devpriv;
 
 	dev->board_ptr = pc236_find_pci_board(pci_dev);
 	if (dev->board_ptr == NULL) {
diff --git a/drivers/staging/comedi/drivers/amplc_pci224.c b/drivers/staging/comedi/drivers/amplc_pci224.c
index 5d73082adfc5..6a9ec11c4f07 100644
--- a/drivers/staging/comedi/drivers/amplc_pci224.c
+++ b/drivers/staging/comedi/drivers/amplc_pci224.c
@@ -1445,14 +1445,13 @@ static int pci224_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 {
 	struct pci224_private *devpriv;
 	struct pci_dev *pci_dev;
-	int ret;
 
 	dev_info(dev->class_dev, DRIVER_NAME ": attach\n");
 
-	ret = alloc_private(dev, sizeof(*devpriv));
-	if (ret)
-		return ret;
-	devpriv = dev->private;
+	devpriv = kzalloc(sizeof(*devpriv), GFP_KERNEL);
+	if (!devpriv)
+		return -ENOMEM;
+	dev->private = devpriv;
 
 	pci_dev = pci224_find_pci_dev(dev, it);
 	if (!pci_dev)
@@ -1465,15 +1464,14 @@ static int __devinit
 pci224_attach_pci(struct comedi_device *dev, struct pci_dev *pci_dev)
 {
 	struct pci224_private *devpriv;
-	int ret;
 
 	dev_info(dev->class_dev, DRIVER_NAME ": attach_pci %s\n",
 		 pci_name(pci_dev));
 
-	ret = alloc_private(dev, sizeof(*devpriv));
-	if (ret)
-		return ret;
-	devpriv = dev->private;
+	devpriv = kzalloc(sizeof(*devpriv), GFP_KERNEL);
+	if (!devpriv)
+		return -ENOMEM;
+	dev->private = devpriv;
 
 	dev->board_ptr = pci224_find_pci_board(pci_dev);
 	if (dev->board_ptr == NULL) {
diff --git a/drivers/staging/comedi/drivers/amplc_pci230.c b/drivers/staging/comedi/drivers/amplc_pci230.c
index cf454b9cb292..2675eefe8b5a 100644
--- a/drivers/staging/comedi/drivers/amplc_pci230.c
+++ b/drivers/staging/comedi/drivers/amplc_pci230.c
@@ -2660,12 +2660,11 @@ static struct pci_dev *pci230_find_pci_dev(struct comedi_device *dev,
 static int pci230_alloc_private(struct comedi_device *dev)
 {
 	struct pci230_private *devpriv;
-	int err;
 
-	err = alloc_private(dev, sizeof(*devpriv));
-	if (err)
-		return err;
-	devpriv = dev->private;
+	devpriv = kzalloc(sizeof(*devpriv), GFP_KERNEL);
+	if (!devpriv)
+		return -ENOMEM;
+	dev->private = devpriv;
 
 	spin_lock_init(&devpriv->isr_spinlock);
 	spin_lock_init(&devpriv->res_spinlock);
diff --git a/drivers/staging/comedi/drivers/cb_das16_cs.c b/drivers/staging/comedi/drivers/cb_das16_cs.c
index 64442b360663..8b091c61cbc8 100644
--- a/drivers/staging/comedi/drivers/cb_das16_cs.c
+++ b/drivers/staging/comedi/drivers/cb_das16_cs.c
@@ -452,10 +452,10 @@ static int das16cs_attach(struct comedi_device *dev,
 		return ret;
 	dev->irq = link->irq;
 
-	ret = alloc_private(dev, sizeof(*devpriv));
-	if (ret)
-		return ret;
-	devpriv = dev->private;
+	devpriv = kzalloc(sizeof(*devpriv), GFP_KERNEL);
+	if (!devpriv)
+		return -ENOMEM;
+	dev->private = devpriv;
 
 	ret = comedi_alloc_subdevices(dev, 3);
 	if (ret)
diff --git a/drivers/staging/comedi/drivers/cb_pcidas.c b/drivers/staging/comedi/drivers/cb_pcidas.c
index de21a261ff45..3f4f8bef692b 100644
--- a/drivers/staging/comedi/drivers/cb_pcidas.c
+++ b/drivers/staging/comedi/drivers/cb_pcidas.c
@@ -1486,10 +1486,10 @@ static int cb_pcidas_attach_pci(struct comedi_device *dev,
 	dev->board_ptr  = thisboard;
 	dev->board_name = thisboard->name;
 
-	ret = alloc_private(dev, sizeof(*devpriv));
-	if (ret)
-		return ret;
-	devpriv = dev->private;
+	devpriv = kzalloc(sizeof(*devpriv), GFP_KERNEL);
+	if (!devpriv)
+		return -ENOMEM;
+	dev->private = devpriv;
 
 	ret = comedi_pci_enable(pcidev, dev->board_name);
 	if (ret)
diff --git a/drivers/staging/comedi/drivers/cb_pcidas64.c b/drivers/staging/comedi/drivers/cb_pcidas64.c
index 08546a1091a2..a6f5e5e92c8e 100644
--- a/drivers/staging/comedi/drivers/cb_pcidas64.c
+++ b/drivers/staging/comedi/drivers/cb_pcidas64.c
@@ -1688,10 +1688,10 @@ static int attach(struct comedi_device *dev, struct comedi_devconfig *it)
 	uint32_t local_range, local_decode;
 	int retval;
 
-	retval = alloc_private(dev, sizeof(*devpriv));
-	if (retval)
-		return retval;
-	devpriv = dev->private;
+	devpriv = kzalloc(sizeof(*devpriv), GFP_KERNEL);
+	if (!devpriv)
+		return -ENOMEM;
+	dev->private = devpriv;
 
 	pcidev = cb_pcidas64_find_pci_dev(dev, it);
 	if (!pcidev)
diff --git a/drivers/staging/comedi/drivers/cb_pcidda.c b/drivers/staging/comedi/drivers/cb_pcidda.c
index aef946df27e2..07a8969c8919 100644
--- a/drivers/staging/comedi/drivers/cb_pcidda.c
+++ b/drivers/staging/comedi/drivers/cb_pcidda.c
@@ -664,10 +664,10 @@ static int cb_pcidda_attach_pci(struct comedi_device *dev,
 	dev->board_ptr = thisboard;
 	dev->board_name = thisboard->name;
 
-	ret = alloc_private(dev, sizeof(*devpriv));
-	if (ret)
-		return ret;
-	devpriv = dev->private;
+	devpriv = kzalloc(sizeof(*devpriv), GFP_KERNEL);
+	if (!devpriv)
+		return -ENOMEM;
+	dev->private = devpriv;
 
 	ret = comedi_pci_enable(pcidev, dev->board_name);
 	if (ret)
diff --git a/drivers/staging/comedi/drivers/cb_pcimdas.c b/drivers/staging/comedi/drivers/cb_pcimdas.c
index d1c7220c0b7b..9df9a02553c0 100644
--- a/drivers/staging/comedi/drivers/cb_pcimdas.c
+++ b/drivers/staging/comedi/drivers/cb_pcimdas.c
@@ -219,10 +219,10 @@ static int cb_pcimdas_attach_pci(struct comedi_device *dev,
 
 	dev->board_name = dev->driver->driver_name;
 
-	ret = alloc_private(dev, sizeof(*devpriv));
-	if (ret)
-		return ret;
-	devpriv = dev->private;
+	devpriv = kzalloc(sizeof(*devpriv), GFP_KERNEL);
+	if (!devpriv)
+		return -ENOMEM;
+	dev->private = devpriv;
 
 	ret = comedi_pci_enable(pcidev, dev->board_name);
 	if (ret)
diff --git a/drivers/staging/comedi/drivers/cb_pcimdda.c b/drivers/staging/comedi/drivers/cb_pcimdda.c
index ba9f0599be28..651cf18cd606 100644
--- a/drivers/staging/comedi/drivers/cb_pcimdda.c
+++ b/drivers/staging/comedi/drivers/cb_pcimdda.c
@@ -162,10 +162,10 @@ static int cb_pcimdda_attach_pci(struct comedi_device *dev,
 	comedi_set_hw_dev(dev, &pcidev->dev);
 	dev->board_name = dev->driver->driver_name;
 
-	ret = alloc_private(dev, sizeof(*devpriv));
-	if (ret)
-		return ret;
-	devpriv = dev->private;
+	devpriv = kzalloc(sizeof(*devpriv), GFP_KERNEL);
+	if (!devpriv)
+		return -ENOMEM;
+	dev->private = devpriv;
 
 	ret = comedi_pci_enable(pcidev, dev->board_name);
 	if (ret)
diff --git a/drivers/staging/comedi/drivers/comedi_bond.c b/drivers/staging/comedi/drivers/comedi_bond.c
index 5c768bc76eb1..31515999bb97 100644
--- a/drivers/staging/comedi/drivers/comedi_bond.c
+++ b/drivers/staging/comedi/drivers/comedi_bond.c
@@ -304,10 +304,10 @@ static int bonding_attach(struct comedi_device *dev,
 	struct comedi_subdevice *s;
 	int ret;
 
-	ret = alloc_private(dev, sizeof(*devpriv));
-	if (ret)
-		return ret;
-	devpriv = dev->private;
+	devpriv = kzalloc(sizeof(*devpriv), GFP_KERNEL);
+	if (!devpriv)
+		return -ENOMEM;
+	dev->private = devpriv;
 
 	/*
 	 * Setup our bonding from config params.. sets up our private struct..
diff --git a/drivers/staging/comedi/drivers/comedi_parport.c b/drivers/staging/comedi/drivers/comedi_parport.c
index a1371c5a7d86..6d3b56a70aa9 100644
--- a/drivers/staging/comedi/drivers/comedi_parport.c
+++ b/drivers/staging/comedi/drivers/comedi_parport.c
@@ -305,10 +305,10 @@ static int parport_attach(struct comedi_device *dev,
 	if (ret)
 		return ret;
 
-	ret = alloc_private(dev, sizeof(*devpriv));
-	if (ret)
-		return ret;
-	devpriv = dev->private;
+	devpriv = kzalloc(sizeof(*devpriv), GFP_KERNEL);
+	if (!devpriv)
+		return -ENOMEM;
+	dev->private = devpriv;
 
 	s = &dev->subdevices[0];
 	s->type = COMEDI_SUBD_DIO;
diff --git a/drivers/staging/comedi/drivers/comedi_test.c b/drivers/staging/comedi/drivers/comedi_test.c
index 788a5cc89e21..1be345518b64 100644
--- a/drivers/staging/comedi/drivers/comedi_test.c
+++ b/drivers/staging/comedi/drivers/comedi_test.c
@@ -414,10 +414,10 @@ static int waveform_attach(struct comedi_device *dev,
 
 	dev->board_name = dev->driver->driver_name;
 
-	ret = alloc_private(dev, sizeof(*devpriv));
-	if (ret)
-		return ret;
-	devpriv = dev->private;
+	devpriv = kzalloc(sizeof(*devpriv), GFP_KERNEL);
+	if (!devpriv)
+		return -ENOMEM;
+	dev->private = devpriv;
 
 	/* set default amplitude and period */
 	if (amplitude <= 0)
diff --git a/drivers/staging/comedi/drivers/daqboard2000.c b/drivers/staging/comedi/drivers/daqboard2000.c
index 6bc51fcc6881..513056d232f4 100644
--- a/drivers/staging/comedi/drivers/daqboard2000.c
+++ b/drivers/staging/comedi/drivers/daqboard2000.c
@@ -706,10 +706,10 @@ static int daqboard2000_attach_pci(struct comedi_device *dev,
 	dev->board_ptr = board;
 	dev->board_name = board->name;
 
-	result = alloc_private(dev, sizeof(*devpriv));
-	if (result)
-		return result;
-	devpriv = dev->private;
+	devpriv = kzalloc(sizeof(*devpriv), GFP_KERNEL);
+	if (!devpriv)
+		return -ENOMEM;
+	dev->private = devpriv;
 
 	result = comedi_pci_enable(pcidev, dev->driver->driver_name);
 	if (result < 0)
diff --git a/drivers/staging/comedi/drivers/das08.c b/drivers/staging/comedi/drivers/das08.c
index 19c2907c3842..4fa8f0baa4ac 100644
--- a/drivers/staging/comedi/drivers/das08.c
+++ b/drivers/staging/comedi/drivers/das08.c
@@ -780,15 +780,14 @@ das08_attach_pci(struct comedi_device *dev, struct pci_dev *pdev)
 {
 	struct das08_private_struct *devpriv;
 	unsigned long iobase;
-	int ret;
 
 	if (!DO_PCI)
 		return -EINVAL;
 
-	ret = alloc_private(dev, sizeof(*devpriv));
-	if (ret)
-		return ret;
-	devpriv = dev->private;
+	devpriv = kzalloc(sizeof(*devpriv), GFP_KERNEL);
+	if (!devpriv)
+		return -ENOMEM;
+	dev->private = devpriv;
 
 	dev_info(dev->class_dev, "attach pci %s\n", pci_name(pdev));
 	dev->board_ptr = das08_find_pci_board(pdev);
@@ -813,13 +812,12 @@ das08_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 {
 	const struct das08_board_struct *thisboard = comedi_board(dev);
 	struct das08_private_struct *devpriv;
-	int ret;
 	unsigned long iobase;
 
-	ret = alloc_private(dev, sizeof(*devpriv));
-	if (ret)
-		return ret;
-	devpriv = dev->private;
+	devpriv = kzalloc(sizeof(*devpriv), GFP_KERNEL);
+	if (!devpriv)
+		return -ENOMEM;
+	dev->private = devpriv;
 
 	dev_info(dev->class_dev, "attach\n");
 	if (is_pci_board(thisboard)) {
diff --git a/drivers/staging/comedi/drivers/das08_cs.c b/drivers/staging/comedi/drivers/das08_cs.c
index d908d2d04f8c..024262375e3c 100644
--- a/drivers/staging/comedi/drivers/das08_cs.c
+++ b/drivers/staging/comedi/drivers/das08_cs.c
@@ -91,14 +91,13 @@ static int das08_cs_attach(struct comedi_device *dev,
 {
 	const struct das08_board_struct *thisboard = comedi_board(dev);
 	struct das08_private_struct *devpriv;
-	int ret;
 	unsigned long iobase;
 	struct pcmcia_device *link = cur_dev;	/*  XXX hack */
 
-	ret = alloc_private(dev, sizeof(*devpriv));
-	if (ret)
-		return ret;
-	devpriv = dev->private;
+	devpriv = kzalloc(sizeof(*devpriv), GFP_KERNEL);
+	if (!devpriv)
+		return -ENOMEM;
+	dev->private = devpriv;
 
 	dev_info(dev->class_dev, "das08_cs: attach\n");
 	/*  deal with a pci board */
diff --git a/drivers/staging/comedi/drivers/das16.c b/drivers/staging/comedi/drivers/das16.c
index 3f614dcde8bc..2ceadcb97408 100644
--- a/drivers/staging/comedi/drivers/das16.c
+++ b/drivers/staging/comedi/drivers/das16.c
@@ -1127,10 +1127,10 @@ static int das16_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 		}
 	}
 
-	ret = alloc_private(dev, sizeof(*devpriv));
-	if (ret)
-		return ret;
-	devpriv = dev->private;
+	devpriv = kzalloc(sizeof(*devpriv), GFP_KERNEL);
+	if (!devpriv)
+		return -ENOMEM;
+	dev->private = devpriv;
 
 	if (board->size < 0x400) {
 		printk(" 0x%04lx-0x%04lx\n", iobase, iobase + board->size);
diff --git a/drivers/staging/comedi/drivers/das16m1.c b/drivers/staging/comedi/drivers/das16m1.c
index b06f2b8aad66..d93d95102af7 100644
--- a/drivers/staging/comedi/drivers/das16m1.c
+++ b/drivers/staging/comedi/drivers/das16m1.c
@@ -594,10 +594,10 @@ static int das16m1_attach(struct comedi_device *dev,
 
 	iobase = it->options[0];
 
-	ret = alloc_private(dev, sizeof(*devpriv));
-	if (ret)
-		return ret;
-	devpriv = dev->private;
+	devpriv = kzalloc(sizeof(*devpriv), GFP_KERNEL);
+	if (!devpriv)
+		return -ENOMEM;
+	dev->private = devpriv;
 
 	if (!request_region(iobase, DAS16M1_SIZE, dev->board_name)) {
 		comedi_error(dev, "I/O port conflict\n");
diff --git a/drivers/staging/comedi/drivers/das1800.c b/drivers/staging/comedi/drivers/das1800.c
index 3754fcb83531..2495cd914793 100644
--- a/drivers/staging/comedi/drivers/das1800.c
+++ b/drivers/staging/comedi/drivers/das1800.c
@@ -1542,10 +1542,10 @@ static int das1800_attach(struct comedi_device *dev,
 	int board;
 	int retval;
 
-	retval = alloc_private(dev, sizeof(*devpriv));
-	if (retval)
-		return retval;
-	devpriv = dev->private;
+	devpriv = kzalloc(sizeof(*devpriv), GFP_KERNEL);
+	if (!devpriv)
+		return -ENOMEM;
+	dev->private = devpriv;
 
 	printk(KERN_DEBUG "comedi%d: %s: io 0x%lx", dev->minor,
 	       dev->driver->driver_name, iobase);
diff --git a/drivers/staging/comedi/drivers/das6402.c b/drivers/staging/comedi/drivers/das6402.c
index 8029e370b2d8..2efddb89bbcb 100644
--- a/drivers/staging/comedi/drivers/das6402.c
+++ b/drivers/staging/comedi/drivers/das6402.c
@@ -310,10 +310,10 @@ static int das6402_attach(struct comedi_device *dev,
 
 	dev->irq = irq;
 
-	ret = alloc_private(dev, sizeof(*devpriv));
-	if (ret)
-		return ret;
-	devpriv = dev->private;
+	devpriv = kzalloc(sizeof(*devpriv), GFP_KERNEL);
+	if (!devpriv)
+		return -ENOMEM;
+	dev->private = devpriv;
 
 	ret = comedi_alloc_subdevices(dev, 1);
 	if (ret)
diff --git a/drivers/staging/comedi/drivers/das800.c b/drivers/staging/comedi/drivers/das800.c
index 2a6df6b6ae39..1ba26b46fd9a 100644
--- a/drivers/staging/comedi/drivers/das800.c
+++ b/drivers/staging/comedi/drivers/das800.c
@@ -472,10 +472,10 @@ static int das800_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 	if (irq)
 		dev_dbg(dev->class_dev, "irq %u\n", irq);
 
-	ret = alloc_private(dev, sizeof(*devpriv));
-	if (ret)
-		return ret;
-	devpriv = dev->private;
+	devpriv = kzalloc(sizeof(*devpriv), GFP_KERNEL);
+	if (!devpriv)
+		return -ENOMEM;
+	dev->private = devpriv;
 
 	if (iobase == 0) {
 		dev_err(dev->class_dev,
diff --git a/drivers/staging/comedi/drivers/dmm32at.c b/drivers/staging/comedi/drivers/dmm32at.c
index c8b7a031c48f..a526c6770bbc 100644
--- a/drivers/staging/comedi/drivers/dmm32at.c
+++ b/drivers/staging/comedi/drivers/dmm32at.c
@@ -793,10 +793,10 @@ static int dmm32at_attach(struct comedi_device *dev,
 		dev->irq = irq;
 	}
 
-	ret = alloc_private(dev, sizeof(*devpriv));
-	if (ret)
-		return ret;
-	devpriv = dev->private;
+	devpriv = kzalloc(sizeof(*devpriv), GFP_KERNEL);
+	if (!devpriv)
+		return -ENOMEM;
+	dev->private = devpriv;
 
 	ret = comedi_alloc_subdevices(dev, 3);
 	if (ret)
diff --git a/drivers/staging/comedi/drivers/dt2801.c b/drivers/staging/comedi/drivers/dt2801.c
index da139d212ce3..f6942aaf0ecd 100644
--- a/drivers/staging/comedi/drivers/dt2801.c
+++ b/drivers/staging/comedi/drivers/dt2801.c
@@ -633,10 +633,10 @@ havetype:
 	if (ret)
 		goto out;
 
-	ret = alloc_private(dev, sizeof(*devpriv));
-	if (ret)
-		return ret;
-	devpriv = dev->private;
+	devpriv = kzalloc(sizeof(*devpriv), GFP_KERNEL);
+	if (!devpriv)
+		return -ENOMEM;
+	dev->private = devpriv;
 
 	dev->board_name = boardtype.name;
 
diff --git a/drivers/staging/comedi/drivers/dt2811.c b/drivers/staging/comedi/drivers/dt2811.c
index c4a7768971d2..f90ecf494aaf 100644
--- a/drivers/staging/comedi/drivers/dt2811.c
+++ b/drivers/staging/comedi/drivers/dt2811.c
@@ -465,10 +465,10 @@ static int dt2811_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 	if (ret)
 		return ret;
 
-	ret = alloc_private(dev, sizeof(*devpriv));
-	if (ret)
-		return ret;
-	devpriv = dev->private;
+	devpriv = kzalloc(sizeof(*devpriv), GFP_KERNEL);
+	if (!devpriv)
+		return -ENOMEM;
+	dev->private = devpriv;
 
 	switch (it->options[2]) {
 	case 0:
diff --git a/drivers/staging/comedi/drivers/dt2814.c b/drivers/staging/comedi/drivers/dt2814.c
index 4b81ae33ca02..35cb2b55236c 100644
--- a/drivers/staging/comedi/drivers/dt2814.c
+++ b/drivers/staging/comedi/drivers/dt2814.c
@@ -325,10 +325,10 @@ static int dt2814_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 	if (ret)
 		return ret;
 
-	ret = alloc_private(dev, sizeof(*devpriv));
-	if (ret)
-		return ret;
-	devpriv = dev->private;
+	devpriv = kzalloc(sizeof(*devpriv), GFP_KERNEL);
+	if (!devpriv)
+		return -ENOMEM;
+	dev->private = devpriv;
 
 	s = &dev->subdevices[0];
 	dev->read_subdev = s;
diff --git a/drivers/staging/comedi/drivers/dt2815.c b/drivers/staging/comedi/drivers/dt2815.c
index 1f1998f3d245..1e0cfe4972a6 100644
--- a/drivers/staging/comedi/drivers/dt2815.c
+++ b/drivers/staging/comedi/drivers/dt2815.c
@@ -183,10 +183,10 @@ static int dt2815_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 	if (ret)
 		return ret;
 
-	ret = alloc_private(dev, sizeof(*devpriv));
-	if (ret)
-		return ret;
-	devpriv = dev->private;
+	devpriv = kzalloc(sizeof(*devpriv), GFP_KERNEL);
+	if (!devpriv)
+		return -ENOMEM;
+	dev->private = devpriv;
 
 	s = &dev->subdevices[0];
 	/* ao subdevice */
diff --git a/drivers/staging/comedi/drivers/dt282x.c b/drivers/staging/comedi/drivers/dt282x.c
index f25246833213..9746294efc94 100644
--- a/drivers/staging/comedi/drivers/dt282x.c
+++ b/drivers/staging/comedi/drivers/dt282x.c
@@ -1239,10 +1239,10 @@ static int dt282x_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 #endif
 	}
 
-	ret = alloc_private(dev, sizeof(*devpriv));
-	if (ret)
-		return ret;
-	devpriv = dev->private;
+	devpriv = kzalloc(sizeof(*devpriv), GFP_KERNEL);
+	if (!devpriv)
+		return -ENOMEM;
+	dev->private = devpriv;
 
 	ret = dt282x_grab_dma(dev, it->options[opt_dma1],
 			      it->options[opt_dma2]);
diff --git a/drivers/staging/comedi/drivers/dt3000.c b/drivers/staging/comedi/drivers/dt3000.c
index e71d880bddaa..46645759781d 100644
--- a/drivers/staging/comedi/drivers/dt3000.c
+++ b/drivers/staging/comedi/drivers/dt3000.c
@@ -806,10 +806,10 @@ static int dt3000_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 
 	dev_dbg(dev->class_dev, "dt3000:\n");
 
-	ret = alloc_private(dev, sizeof(*devpriv));
-	if (ret)
-		return ret;
-	devpriv = dev->private;
+	devpriv = kzalloc(sizeof(*devpriv), GFP_KERNEL);
+	if (!devpriv)
+		return -ENOMEM;
+	dev->private = devpriv;
 
 	pcidev = dt3000_find_pci_dev(dev, it);
 	if (!pcidev)
diff --git a/drivers/staging/comedi/drivers/dt9812.c b/drivers/staging/comedi/drivers/dt9812.c
index 02b5394d7bdf..176799849d20 100644
--- a/drivers/staging/comedi/drivers/dt9812.c
+++ b/drivers/staging/comedi/drivers/dt9812.c
@@ -1031,10 +1031,10 @@ static int dt9812_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 
 	dev->board_name = "dt9812";
 
-	ret = alloc_private(dev, sizeof(*devpriv));
-	if (ret)
-		return ret;
-	devpriv = dev->private;
+	devpriv = kzalloc(sizeof(*devpriv), GFP_KERNEL);
+	if (!devpriv)
+		return -ENOMEM;
+	dev->private = devpriv;
 
 	/*
 	 * Special open routine, since USB unit may be unattached at
diff --git a/drivers/staging/comedi/drivers/dyna_pci10xx.c b/drivers/staging/comedi/drivers/dyna_pci10xx.c
index 6f612be1b0a5..98e2ffb19929 100644
--- a/drivers/staging/comedi/drivers/dyna_pci10xx.c
+++ b/drivers/staging/comedi/drivers/dyna_pci10xx.c
@@ -190,10 +190,10 @@ static int dyna_pci10xx_attach_pci(struct comedi_device *dev,
 
 	dev->board_name = dev->driver->driver_name;
 
-	ret = alloc_private(dev, sizeof(*devpriv));
-	if (ret)
-		return ret;
-	devpriv = dev->private;
+	devpriv = kzalloc(sizeof(*devpriv), GFP_KERNEL);
+	if (!devpriv)
+		return -ENOMEM;
+	dev->private = devpriv;
 
 	ret = comedi_pci_enable(pcidev, dev->board_name);
 	if (ret)
diff --git a/drivers/staging/comedi/drivers/fl512.c b/drivers/staging/comedi/drivers/fl512.c
index c1c24b062555..019c96eda6fd 100644
--- a/drivers/staging/comedi/drivers/fl512.c
+++ b/drivers/staging/comedi/drivers/fl512.c
@@ -127,10 +127,10 @@ static int fl512_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 	dev->iobase = iobase;
 	dev->board_name = "fl512";
 
-	ret = alloc_private(dev, sizeof(*devpriv));
-	if (ret)
-		return ret;
-	devpriv = dev->private;
+	devpriv = kzalloc(sizeof(*devpriv), GFP_KERNEL);
+	if (!devpriv)
+		return -ENOMEM;
+	dev->private = devpriv;
 
 #if DEBUG
 	printk(KERN_DEBUG "malloc ok\n");
diff --git a/drivers/staging/comedi/drivers/gsc_hpdi.c b/drivers/staging/comedi/drivers/gsc_hpdi.c
index 550f458cb59c..17aec51343b8 100644
--- a/drivers/staging/comedi/drivers/gsc_hpdi.c
+++ b/drivers/staging/comedi/drivers/gsc_hpdi.c
@@ -481,10 +481,10 @@ static int hpdi_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 
 	printk(KERN_WARNING "comedi%d: gsc_hpdi\n", dev->minor);
 
-	retval = alloc_private(dev, sizeof(*devpriv));
-	if (retval)
-		return retval;
-	devpriv = dev->private;
+	devpriv = kzalloc(sizeof(*devpriv), GFP_KERNEL);
+	if (!devpriv)
+		return -ENOMEM;
+	dev->private = devpriv;
 
 	pcidev = NULL;
 	for (i = 0; i < ARRAY_SIZE(hpdi_boards) &&
diff --git a/drivers/staging/comedi/drivers/icp_multi.c b/drivers/staging/comedi/drivers/icp_multi.c
index 8eb3a87b5b8c..8a3f63484371 100644
--- a/drivers/staging/comedi/drivers/icp_multi.c
+++ b/drivers/staging/comedi/drivers/icp_multi.c
@@ -505,10 +505,10 @@ static int icp_multi_attach_pci(struct comedi_device *dev,
 	comedi_set_hw_dev(dev, &pcidev->dev);
 	dev->board_name = dev->driver->driver_name;
 
-	ret = alloc_private(dev, sizeof(*devpriv));
-	if (ret)
-		return ret;
-	devpriv = dev->private;
+	devpriv = kzalloc(sizeof(*devpriv), GFP_KERNEL);
+	if (!devpriv)
+		return -ENOMEM;
+	dev->private = devpriv;
 
 	ret = comedi_pci_enable(pcidev, dev->board_name);
 	if (ret)
diff --git a/drivers/staging/comedi/drivers/ii_pci20kc.c b/drivers/staging/comedi/drivers/ii_pci20kc.c
index 972a09fa7532..93584e2be35a 100644
--- a/drivers/staging/comedi/drivers/ii_pci20kc.c
+++ b/drivers/staging/comedi/drivers/ii_pci20kc.c
@@ -206,10 +206,10 @@ static int pci20xxx_attach(struct comedi_device *dev,
 	if (ret)
 		return ret;
 
-	ret = alloc_private(dev, sizeof(*devpriv));
-	if (ret)
-		return ret;
-	devpriv = dev->private;
+	devpriv = kzalloc(sizeof(*devpriv), GFP_KERNEL);
+	if (!devpriv)
+		return -ENOMEM;
+	dev->private = devpriv;
 
 	devpriv->ioaddr = (void __iomem *)(unsigned long)it->options[0];
 	dev->board_name = "pci20kc";
diff --git a/drivers/staging/comedi/drivers/jr3_pci.c b/drivers/staging/comedi/drivers/jr3_pci.c
index 69378dd90e28..68400f13af0e 100644
--- a/drivers/staging/comedi/drivers/jr3_pci.c
+++ b/drivers/staging/comedi/drivers/jr3_pci.c
@@ -762,10 +762,10 @@ static int jr3_pci_attach(struct comedi_device *dev,
 		return -EINVAL;
 	}
 
-	result = alloc_private(dev, sizeof(*devpriv));
-	if (result)
-		return result;
-	devpriv = dev->private;
+	devpriv = kzalloc(sizeof(*devpriv), GFP_KERNEL);
+	if (!devpriv)
+		return -ENOMEM;
+	dev->private = devpriv;
 
 	card = NULL;
 	init_timer(&devpriv->timer);
diff --git a/drivers/staging/comedi/drivers/me4000.c b/drivers/staging/comedi/drivers/me4000.c
index 22db35d091f8..ae91837fe7eb 100644
--- a/drivers/staging/comedi/drivers/me4000.c
+++ b/drivers/staging/comedi/drivers/me4000.c
@@ -1586,10 +1586,10 @@ static int me4000_attach_pci(struct comedi_device *dev,
 	dev->board_ptr = thisboard;
 	dev->board_name = thisboard->name;
 
-	result = alloc_private(dev, sizeof(*info));
-	if (result)
-		return result;
-	info = dev->private;
+	info = kzalloc(sizeof(*info), GFP_KERNEL);
+	if (!info)
+		return -ENOMEM;
+	dev->private = info;
 
 	result = comedi_pci_enable(pcidev, dev->board_name);
 	if (result)
diff --git a/drivers/staging/comedi/drivers/me_daq.c b/drivers/staging/comedi/drivers/me_daq.c
index 3eac3ef8d79d..33b13aedfc02 100644
--- a/drivers/staging/comedi/drivers/me_daq.c
+++ b/drivers/staging/comedi/drivers/me_daq.c
@@ -656,10 +656,10 @@ static int me_attach_pci(struct comedi_device *dev, struct pci_dev *pcidev)
 	dev->board_ptr = board;
 	dev->board_name = board->name;
 
-	error = alloc_private(dev, sizeof(*dev_private));
-	if (error)
-		return error;
-	dev_private = dev->private;
+	dev_private = kzalloc(sizeof(*dev_private), GFP_KERNEL);
+	if (!dev_private)
+		return -ENOMEM;
+	dev->private = dev_private;
 
 	/* Enable PCI device and request PCI regions */
 	if (comedi_pci_enable(pcidev, dev->board_name) < 0) {
diff --git a/drivers/staging/comedi/drivers/mpc624.c b/drivers/staging/comedi/drivers/mpc624.c
index 3e8892c82094..67dc5ad81b0d 100644
--- a/drivers/staging/comedi/drivers/mpc624.c
+++ b/drivers/staging/comedi/drivers/mpc624.c
@@ -298,10 +298,10 @@ static int mpc624_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 	dev->iobase = iobase;
 	dev->board_name = "mpc624";
 
-	ret = alloc_private(dev, sizeof(*devpriv));
-	if (ret)
-		return ret;
-	devpriv = dev->private;
+	devpriv = kzalloc(sizeof(*devpriv), GFP_KERNEL);
+	if (!devpriv)
+		return -ENOMEM;
+	dev->private = devpriv;
 
 	switch (it->options[1]) {
 	case 0:
diff --git a/drivers/staging/comedi/drivers/multiq3.c b/drivers/staging/comedi/drivers/multiq3.c
index f707ee02dcca..1f5f402f3d17 100644
--- a/drivers/staging/comedi/drivers/multiq3.c
+++ b/drivers/staging/comedi/drivers/multiq3.c
@@ -258,10 +258,10 @@ static int multiq3_attach(struct comedi_device *dev,
 	if (result)
 		return result;
 
-	result = alloc_private(dev, sizeof(*devpriv));
-	if (result)
-		return result;
-	devpriv = dev->private;
+	devpriv = kzalloc(sizeof(*devpriv), GFP_KERNEL);
+	if (!devpriv)
+		return -ENOMEM;
+	dev->private = devpriv;
 
 	s = &dev->subdevices[0];
 	/* ai subdevice */
diff --git a/drivers/staging/comedi/drivers/ni_6527.c b/drivers/staging/comedi/drivers/ni_6527.c
index 4f5624a3a1b0..d853e75be791 100644
--- a/drivers/staging/comedi/drivers/ni_6527.c
+++ b/drivers/staging/comedi/drivers/ni_6527.c
@@ -364,10 +364,10 @@ static int __devinit ni6527_attach_pci(struct comedi_device *dev,
 	struct comedi_subdevice *s;
 	int ret;
 
-	ret = alloc_private(dev, sizeof(*devpriv));
-	if (ret)
-		return ret;
-	devpriv = dev->private;
+	devpriv = kzalloc(sizeof(*devpriv), GFP_KERNEL);
+	if (!devpriv)
+		return -ENOMEM;
+	dev->private = devpriv;
 
 	dev->board_ptr = ni6527_find_boardinfo(pcidev);
 	if (!dev->board_ptr)
diff --git a/drivers/staging/comedi/drivers/ni_65xx.c b/drivers/staging/comedi/drivers/ni_65xx.c
index 1881f3346259..19d5e8c96e8f 100644
--- a/drivers/staging/comedi/drivers/ni_65xx.c
+++ b/drivers/staging/comedi/drivers/ni_65xx.c
@@ -635,10 +635,10 @@ static int __devinit ni_65xx_attach_pci(struct comedi_device *dev,
 	unsigned i;
 	int ret;
 
-	ret = alloc_private(dev, sizeof(*devpriv));
-	if (ret)
-		return ret;
-	devpriv = dev->private;
+	devpriv = kzalloc(sizeof(*devpriv), GFP_KERNEL);
+	if (!devpriv)
+		return -ENOMEM;
+	dev->private = devpriv;
 
 	dev->board_ptr = ni_65xx_find_boardinfo(pcidev);
 	if (!dev->board_ptr)
diff --git a/drivers/staging/comedi/drivers/ni_660x.c b/drivers/staging/comedi/drivers/ni_660x.c
index d86840727449..3cff208de8a3 100644
--- a/drivers/staging/comedi/drivers/ni_660x.c
+++ b/drivers/staging/comedi/drivers/ni_660x.c
@@ -996,13 +996,12 @@ static int ni_660x_buf_change(struct comedi_device *dev,
 static int ni_660x_allocate_private(struct comedi_device *dev)
 {
 	struct ni_660x_private *devpriv;
-	int retval;
 	unsigned i;
 
-	retval = alloc_private(dev, sizeof(*devpriv));
-	if (retval)
-		return retval;
-	devpriv = dev->private;
+	devpriv = kzalloc(sizeof(*devpriv), GFP_KERNEL);
+	if (!devpriv)
+		return -ENOMEM;
+	dev->private = devpriv;
 
 	spin_lock_init(&devpriv->mite_channel_lock);
 	spin_lock_init(&devpriv->interrupt_lock);
diff --git a/drivers/staging/comedi/drivers/ni_670x.c b/drivers/staging/comedi/drivers/ni_670x.c
index e7ccf0423b0b..2cf4907c366a 100644
--- a/drivers/staging/comedi/drivers/ni_670x.c
+++ b/drivers/staging/comedi/drivers/ni_670x.c
@@ -210,10 +210,10 @@ static int __devinit ni_670x_attach_pci(struct comedi_device *dev,
 	int ret;
 	int i;
 
-	ret = alloc_private(dev, sizeof(*devpriv));
-	if (ret)
-		return ret;
-	devpriv = dev->private;
+	devpriv = kzalloc(sizeof(*devpriv), GFP_KERNEL);
+	if (!devpriv)
+		return -ENOMEM;
+	dev->private = devpriv;
 
 	dev->board_ptr = ni_670x_find_boardinfo(pcidev);
 	if (!dev->board_ptr)
diff --git a/drivers/staging/comedi/drivers/ni_at_a2150.c b/drivers/staging/comedi/drivers/ni_at_a2150.c
index 34c186b9dce1..0222def373c2 100644
--- a/drivers/staging/comedi/drivers/ni_at_a2150.c
+++ b/drivers/staging/comedi/drivers/ni_at_a2150.c
@@ -758,10 +758,10 @@ static int a2150_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 	}
 	printk("\n");
 
-	ret = alloc_private(dev, sizeof(*devpriv));
-	if (ret)
-		return ret;
-	devpriv = dev->private;
+	devpriv = kzalloc(sizeof(*devpriv), GFP_KERNEL);
+	if (!devpriv)
+		return -ENOMEM;
+	dev->private = devpriv;
 
 	if (iobase == 0) {
 		printk(" io base address required\n");
diff --git a/drivers/staging/comedi/drivers/ni_at_ao.c b/drivers/staging/comedi/drivers/ni_at_ao.c
index 66071600de02..907f65cdbdc0 100644
--- a/drivers/staging/comedi/drivers/ni_at_ao.c
+++ b/drivers/staging/comedi/drivers/ni_at_ao.c
@@ -356,10 +356,10 @@ static int atao_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 
 	dev->board_name = board->name;
 
-	ret = alloc_private(dev, sizeof(*devpriv));
-	if (ret)
-		return ret;
-	devpriv = dev->private;
+	devpriv = kzalloc(sizeof(*devpriv), GFP_KERNEL);
+	if (!devpriv)
+		return -ENOMEM;
+	dev->private = devpriv;
 
 	ret = comedi_alloc_subdevices(dev, 4);
 	if (ret)
diff --git a/drivers/staging/comedi/drivers/ni_atmio16d.c b/drivers/staging/comedi/drivers/ni_atmio16d.c
index 93969865b351..a3884b4d90c6 100644
--- a/drivers/staging/comedi/drivers/ni_atmio16d.c
+++ b/drivers/staging/comedi/drivers/ni_atmio16d.c
@@ -678,10 +678,10 @@ static int atmio16d_attach(struct comedi_device *dev,
 	if (ret)
 		return ret;
 
-	ret = alloc_private(dev, sizeof(*devpriv));
-	if (ret)
-		return ret;
-	devpriv = dev->private;
+	devpriv = kzalloc(sizeof(*devpriv), GFP_KERNEL);
+	if (!devpriv)
+		return -ENOMEM;
+	dev->private = devpriv;
 
 	/* reset the atmio16d hardware */
 	reset_atmio16d(dev);
diff --git a/drivers/staging/comedi/drivers/ni_daq_dio24.c b/drivers/staging/comedi/drivers/ni_daq_dio24.c
index 8df5bfe721f5..7b333353c5d9 100644
--- a/drivers/staging/comedi/drivers/ni_daq_dio24.c
+++ b/drivers/staging/comedi/drivers/ni_daq_dio24.c
@@ -117,10 +117,10 @@ static int dio24_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 	struct pcmcia_device *link;
 	int ret;
 
-	ret = alloc_private(dev, sizeof(*devpriv));
-	if (ret)
-		return ret;
-	devpriv = dev->private;
+	devpriv = kzalloc(sizeof(*devpriv), GFP_KERNEL);
+	if (!devpriv)
+		return -ENOMEM;
+	dev->private = devpriv;
 
 	/*  get base address, irq etc. based on bustype */
 	switch (thisboard->bustype) {
diff --git a/drivers/staging/comedi/drivers/ni_labpc.c b/drivers/staging/comedi/drivers/ni_labpc.c
index d3b386e51bfb..40012506334f 100644
--- a/drivers/staging/comedi/drivers/ni_labpc.c
+++ b/drivers/staging/comedi/drivers/ni_labpc.c
@@ -707,10 +707,10 @@ static int __devinit labpc_attach_pci(struct comedi_device *dev,
 	if (!IS_ENABLED(CONFIG_COMEDI_PCI_DRIVERS))
 		return -ENODEV;
 
-	ret = alloc_private(dev, sizeof(*devpriv));
-	if (ret)
-		return ret;
-	devpriv = dev->private;
+	devpriv = kzalloc(sizeof(*devpriv), GFP_KERNEL);
+	if (!devpriv)
+		return -ENOMEM;
+	dev->private = devpriv;
 
 	dev->board_ptr = labpc_pci_find_boardinfo(pcidev);
 	if (!dev->board_ptr)
@@ -732,12 +732,11 @@ static int labpc_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 	unsigned long iobase = 0;
 	unsigned int irq = 0;
 	unsigned int dma_chan = 0;
-	int ret;
 
-	ret = alloc_private(dev, sizeof(*devpriv));
-	if (ret)
-		return ret;
-	devpriv = dev->private;
+	devpriv = kzalloc(sizeof(*devpriv), GFP_KERNEL);
+	if (!devpriv)
+		return -ENOMEM;
+	dev->private = devpriv;
 
 	/* get base address, irq etc. based on bustype */
 	switch (thisboard->bustype) {
diff --git a/drivers/staging/comedi/drivers/ni_labpc_cs.c b/drivers/staging/comedi/drivers/ni_labpc_cs.c
index 791a66ff65a0..bfe19fa7d66f 100644
--- a/drivers/staging/comedi/drivers/ni_labpc_cs.c
+++ b/drivers/staging/comedi/drivers/ni_labpc_cs.c
@@ -131,12 +131,11 @@ static int labpc_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 	unsigned long iobase = 0;
 	unsigned int irq = 0;
 	struct pcmcia_device *link;
-	int ret;
 
-	ret = alloc_private(dev, sizeof(*devpriv));
-	if (ret)
-		return ret;
-	devpriv = dev->private;
+	devpriv = kzalloc(sizeof(*devpriv), GFP_KERNEL);
+	if (!devpriv)
+		return -ENOMEM;
+	dev->private = devpriv;
 
 	/*  get base address, irq etc. based on bustype */
 	switch (thisboard->bustype) {
diff --git a/drivers/staging/comedi/drivers/ni_mio_common.c b/drivers/staging/comedi/drivers/ni_mio_common.c
index b096c4647b12..743a9016e076 100644
--- a/drivers/staging/comedi/drivers/ni_mio_common.c
+++ b/drivers/staging/comedi/drivers/ni_mio_common.c
@@ -4424,12 +4424,11 @@ static int ni_freq_out_insn_config(struct comedi_device *dev,
 static int ni_alloc_private(struct comedi_device *dev)
 {
 	struct ni_private *devpriv;
-	int ret;
 
-	ret = alloc_private(dev, sizeof(*devpriv));
-	if (ret)
-		return ret;
-	devpriv = dev->private;
+	devpriv = kzalloc(sizeof(*devpriv), GFP_KERNEL);
+	if (!devpriv)
+		return -ENOMEM;
+	dev->private = devpriv;
 
 	spin_lock_init(&devpriv->window_lock);
 	spin_lock_init(&devpriv->soft_reg_copy_lock);
diff --git a/drivers/staging/comedi/drivers/ni_pcidio.c b/drivers/staging/comedi/drivers/ni_pcidio.c
index 233a2d350e84..fcf56cf4811b 100644
--- a/drivers/staging/comedi/drivers/ni_pcidio.c
+++ b/drivers/staging/comedi/drivers/ni_pcidio.c
@@ -1128,10 +1128,10 @@ static int __devinit nidio_attach_pci(struct comedi_device *dev,
 	int ret;
 	unsigned int irq;
 
-	ret = alloc_private(dev, sizeof(*devpriv));
-	if (ret)
-		return ret;
-	devpriv = dev->private;
+	devpriv = kzalloc(sizeof(*devpriv), GFP_KERNEL);
+	if (!devpriv)
+		return -ENOMEM;
+	dev->private = devpriv;
 
 	spin_lock_init(&devpriv->mite_channel_lock);
 
diff --git a/drivers/staging/comedi/drivers/pcl711.c b/drivers/staging/comedi/drivers/pcl711.c
index 33bda31392da..f9c15aa45fea 100644
--- a/drivers/staging/comedi/drivers/pcl711.c
+++ b/drivers/staging/comedi/drivers/pcl711.c
@@ -503,10 +503,10 @@ static int pcl711_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 	if (ret)
 		return ret;
 
-	ret = alloc_private(dev, sizeof(*devpriv));
-	if (ret)
-		return ret;
-	devpriv = dev->private;
+	devpriv = kzalloc(sizeof(*devpriv), GFP_KERNEL);
+	if (!devpriv)
+		return -ENOMEM;
+	dev->private = devpriv;
 
 	s = &dev->subdevices[0];
 	/* AI subdevice */
diff --git a/drivers/staging/comedi/drivers/pcl726.c b/drivers/staging/comedi/drivers/pcl726.c
index 22f907a07041..50e01968f19c 100644
--- a/drivers/staging/comedi/drivers/pcl726.c
+++ b/drivers/staging/comedi/drivers/pcl726.c
@@ -248,10 +248,10 @@ static int pcl726_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 
 	dev->board_name = board->name;
 
-	ret = alloc_private(dev, sizeof(*devpriv));
-	if (ret)
-		return ret;
-	devpriv = dev->private;
+	devpriv = kzalloc(sizeof(*devpriv), GFP_KERNEL);
+	if (!devpriv)
+		return -ENOMEM;
+	dev->private = devpriv;
 
 	for (i = 0; i < 12; i++) {
 		devpriv->bipolar[i] = 0;
diff --git a/drivers/staging/comedi/drivers/pcl812.c b/drivers/staging/comedi/drivers/pcl812.c
index 0d825915d46d..d94c9dc78323 100644
--- a/drivers/staging/comedi/drivers/pcl812.c
+++ b/drivers/staging/comedi/drivers/pcl812.c
@@ -1167,12 +1167,12 @@ static int pcl812_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 	}
 	dev->iobase = iobase;
 
-	ret = alloc_private(dev, sizeof(*devpriv));
-	if (ret) {
+	devpriv = kzalloc(sizeof(*devpriv), GFP_KERNEL);
+	if (!devpriv) {
 		free_resources(dev);
-		return ret;
+		return -ENOMEM;
 	}
-	devpriv = dev->private;
+	dev->private = devpriv;
 
 	dev->board_name = board->name;
 
diff --git a/drivers/staging/comedi/drivers/pcl816.c b/drivers/staging/comedi/drivers/pcl816.c
index 4cdb3c915f5f..858600a753b1 100644
--- a/drivers/staging/comedi/drivers/pcl816.c
+++ b/drivers/staging/comedi/drivers/pcl816.c
@@ -1024,10 +1024,10 @@ static int pcl816_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 		return -EIO;
 	}
 
-	ret = alloc_private(dev, sizeof(*devpriv));
-	if (ret)
-		return ret;
-	devpriv = dev->private;
+	devpriv = kzalloc(sizeof(*devpriv), GFP_KERNEL);
+	if (!devpriv)
+		return -ENOMEM;
+	dev->private = devpriv;
 
 	dev->board_name = board->name;
 
diff --git a/drivers/staging/comedi/drivers/pcl818.c b/drivers/staging/comedi/drivers/pcl818.c
index 9dcddea3f61a..c94f289e3f3a 100644
--- a/drivers/staging/comedi/drivers/pcl818.c
+++ b/drivers/staging/comedi/drivers/pcl818.c
@@ -1625,10 +1625,10 @@ static int pcl818_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 	unsigned long pages;
 	struct comedi_subdevice *s;
 
-	ret = alloc_private(dev, sizeof(*devpriv));
-	if (ret)
-		return ret;
-	devpriv = dev->private;
+	devpriv = kzalloc(sizeof(*devpriv), GFP_KERNEL);
+	if (!devpriv)
+		return -ENOMEM;
+	dev->private = devpriv;
 
 	/* claim our I/O space */
 	iobase = it->options[0];
diff --git a/drivers/staging/comedi/drivers/pcm3724.c b/drivers/staging/comedi/drivers/pcm3724.c
index 6e9a4ec9e852..5f062df1ead4 100644
--- a/drivers/staging/comedi/drivers/pcm3724.c
+++ b/drivers/staging/comedi/drivers/pcm3724.c
@@ -235,10 +235,10 @@ static int pcm3724_attach(struct comedi_device *dev,
 	iobase = it->options[0];
 	iorange = PCM3724_SIZE;
 
-	ret = alloc_private(dev, sizeof(*priv));
-	if (ret)
-		return ret;
-	priv = dev->private;
+	priv = kzalloc(sizeof(*priv), GFP_KERNEL);
+	if (!priv)
+		return -ENOMEM;
+	dev->private = priv;
 
 	printk(KERN_INFO "comedi%d: pcm3724: board=%s, 0x%03lx ", dev->minor,
 	       dev->board_name, iobase);
diff --git a/drivers/staging/comedi/drivers/pcmad.c b/drivers/staging/comedi/drivers/pcmad.c
index 5d5fc519d82a..13e84215fac3 100644
--- a/drivers/staging/comedi/drivers/pcmad.c
+++ b/drivers/staging/comedi/drivers/pcmad.c
@@ -122,10 +122,10 @@ static int pcmad_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 	if (ret)
 		return ret;
 
-	ret = alloc_private(dev, sizeof(*devpriv));
-	if (ret)
-		return ret;
-	devpriv = dev->private;
+	devpriv = kzalloc(sizeof(*devpriv), GFP_KERNEL);
+	if (!devpriv)
+		return -ENOMEM;
+	dev->private = devpriv;
 
 	dev->board_name = board->name;
 
diff --git a/drivers/staging/comedi/drivers/pcmda12.c b/drivers/staging/comedi/drivers/pcmda12.c
index c3009211026a..0882dafaf57b 100644
--- a/drivers/staging/comedi/drivers/pcmda12.c
+++ b/drivers/staging/comedi/drivers/pcmda12.c
@@ -173,10 +173,10 @@ static int pcmda12_attach(struct comedi_device *dev,
 
 	dev->board_name = dev->driver->driver_name;
 
-	ret = alloc_private(dev, sizeof(*devpriv));
-	if (ret)
-		return ret;
-	devpriv = dev->private;
+	devpriv = kzalloc(sizeof(*devpriv), GFP_KERNEL);
+	if (!devpriv)
+		return -ENOMEM;
+	dev->private = devpriv;
 
 	devpriv->simultaneous_xfer_mode = it->options[1];
 
diff --git a/drivers/staging/comedi/drivers/pcmmio.c b/drivers/staging/comedi/drivers/pcmmio.c
index 616652e00ef9..7522bfb6db08 100644
--- a/drivers/staging/comedi/drivers/pcmmio.c
+++ b/drivers/staging/comedi/drivers/pcmmio.c
@@ -1005,10 +1005,10 @@ static int pcmmio_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 		return -EIO;
 	}
 
-	ret = alloc_private(dev, sizeof(*devpriv));
-	if (ret)
-		return ret;
-	devpriv = dev->private;
+	devpriv = kzalloc(sizeof(*devpriv), GFP_KERNEL);
+	if (!devpriv)
+		return -ENOMEM;
+	dev->private = devpriv;
 
 	for (asic = 0; asic < MAX_ASICS; ++asic) {
 		devpriv->asics[asic].num = asic;
diff --git a/drivers/staging/comedi/drivers/pcmuio.c b/drivers/staging/comedi/drivers/pcmuio.c
index 360180438b31..31ea20c2d39e 100644
--- a/drivers/staging/comedi/drivers/pcmuio.c
+++ b/drivers/staging/comedi/drivers/pcmuio.c
@@ -775,10 +775,10 @@ static int pcmuio_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 
 	dev->board_name = board->name;
 
-	ret = alloc_private(dev, sizeof(*devpriv));
-	if (ret)
-		return ret;
-	devpriv = dev->private;
+	devpriv = kzalloc(sizeof(*devpriv), GFP_KERNEL);
+	if (!devpriv)
+		return -ENOMEM;
+	dev->private = devpriv;
 
 	for (asic = 0; asic < MAX_ASICS; ++asic) {
 		devpriv->asics[asic].num = asic;
diff --git a/drivers/staging/comedi/drivers/poc.c b/drivers/staging/comedi/drivers/poc.c
index 8e70affb331a..d7842c95d982 100644
--- a/drivers/staging/comedi/drivers/poc.c
+++ b/drivers/staging/comedi/drivers/poc.c
@@ -167,10 +167,10 @@ static int poc_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 	if (ret)
 		return ret;
 
-	ret = alloc_private(dev, sizeof(*devpriv));
-	if (ret)
-		return ret;
-	devpriv = dev->private;
+	devpriv = kzalloc(sizeof(*devpriv), GFP_KERNEL);
+	if (!devpriv)
+		return -ENOMEM;
+	dev->private = devpriv;
 
 	/* analog output subdevice */
 	s = &dev->subdevices[0];
diff --git a/drivers/staging/comedi/drivers/rtd520.c b/drivers/staging/comedi/drivers/rtd520.c
index b867470cc3ed..0a91738eae33 100644
--- a/drivers/staging/comedi/drivers/rtd520.c
+++ b/drivers/staging/comedi/drivers/rtd520.c
@@ -1607,10 +1607,10 @@ static int rtd_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 		comedi_debug = 1;
 #endif
 
-	ret = alloc_private(dev, sizeof(*devpriv));
-	if (ret)
-		return ret;
-	devpriv = dev->private;
+	devpriv = kzalloc(sizeof(*devpriv), GFP_KERNEL);
+	if (!devpriv)
+		return -ENOMEM;
+	dev->private = devpriv;
 
 	pcidev = rtd_find_pci(dev, it);
 	if (!pcidev)
diff --git a/drivers/staging/comedi/drivers/rti800.c b/drivers/staging/comedi/drivers/rti800.c
index 82dae22b0812..7e577e444909 100644
--- a/drivers/staging/comedi/drivers/rti800.c
+++ b/drivers/staging/comedi/drivers/rti800.c
@@ -349,10 +349,10 @@ static int rti800_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 	if (ret)
 		return ret;
 
-	ret = alloc_private(dev, sizeof(*devpriv));
-	if (ret)
-		return ret;
-	devpriv = dev->private;
+	devpriv = kzalloc(sizeof(*devpriv), GFP_KERNEL);
+	if (!devpriv)
+		return -ENOMEM;
+	dev->private = devpriv;
 
 	devpriv->adc_mux = it->options[2];
 	devpriv->adc_range = it->options[3];
diff --git a/drivers/staging/comedi/drivers/rti802.c b/drivers/staging/comedi/drivers/rti802.c
index 844e75ee9c48..2185ca1bcf02 100644
--- a/drivers/staging/comedi/drivers/rti802.c
+++ b/drivers/staging/comedi/drivers/rti802.c
@@ -105,10 +105,10 @@ static int rti802_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 
 	dev->board_name = "rti802";
 
-	ret = alloc_private(dev, sizeof(*devpriv));
-	if (ret)
-		return ret;
-	devpriv = dev->private;
+	devpriv = kzalloc(sizeof(*devpriv), GFP_KERNEL);
+	if (!devpriv)
+		return -ENOMEM;
+	dev->private = devpriv;
 
 	ret = comedi_alloc_subdevices(dev, 1);
 	if (ret)
diff --git a/drivers/staging/comedi/drivers/s526.c b/drivers/staging/comedi/drivers/s526.c
index a1e256293bd6..39232b359453 100644
--- a/drivers/staging/comedi/drivers/s526.c
+++ b/drivers/staging/comedi/drivers/s526.c
@@ -564,10 +564,10 @@ static int s526_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 	}
 	dev->iobase = iobase;
 
-	ret = alloc_private(dev, sizeof(*devpriv));
-	if (ret)
-		return ret;
-	devpriv = dev->private;
+	devpriv = kzalloc(sizeof(*devpriv), GFP_KERNEL);
+	if (!devpriv)
+		return -ENOMEM;
+	dev->private = devpriv;
 
 	ret = comedi_alloc_subdevices(dev, 4);
 	if (ret)
diff --git a/drivers/staging/comedi/drivers/s626.c b/drivers/staging/comedi/drivers/s626.c
index 511183da0eec..7c50b01f6a6f 100644
--- a/drivers/staging/comedi/drivers/s626.c
+++ b/drivers/staging/comedi/drivers/s626.c
@@ -2700,10 +2700,10 @@ static int s626_attach_pci(struct comedi_device *dev, struct pci_dev *pcidev)
 	comedi_set_hw_dev(dev, &pcidev->dev);
 	dev->board_name = dev->driver->driver_name;
 
-	ret = alloc_private(dev, sizeof(*devpriv));
-	if (ret)
-		return ret;
-	devpriv = dev->private;
+	devpriv = kzalloc(sizeof(*devpriv), GFP_KERNEL);
+	if (!devpriv)
+		return -ENOMEM;
+	dev->private = devpriv;
 
 	ret = comedi_pci_enable(pcidev, dev->board_name);
 	if (ret)
diff --git a/drivers/staging/comedi/drivers/serial2002.c b/drivers/staging/comedi/drivers/serial2002.c
index 3f9221d4918f..4b3b9b029476 100644
--- a/drivers/staging/comedi/drivers/serial2002.c
+++ b/drivers/staging/comedi/drivers/serial2002.c
@@ -786,10 +786,10 @@ static int serial2002_attach(struct comedi_device *dev,
 	dev_dbg(dev->class_dev, "serial2002: attach\n");
 	dev->board_name = dev->driver->driver_name;
 
-	ret = alloc_private(dev, sizeof(*devpriv));
-	if (ret)
-		return ret;
-	devpriv = dev->private;
+	devpriv = kzalloc(sizeof(*devpriv), GFP_KERNEL);
+	if (!devpriv)
+		return -ENOMEM;
+	dev->private = devpriv;
 
 	dev->open = serial_2002_open;
 	dev->close = serial_2002_close;
diff --git a/drivers/staging/comedi/drivers/skel.c b/drivers/staging/comedi/drivers/skel.c
index d2ef7db62479..f292d798f31a 100644
--- a/drivers/staging/comedi/drivers/skel.c
+++ b/drivers/staging/comedi/drivers/skel.c
@@ -225,10 +225,10 @@ static int skel_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 	dev->board_name = thisboard->name;
 
 	/* Allocate the private data */
-	ret = alloc_private(dev, sizeof(*devpriv));
-	if (ret)
-		return ret;
-	devpriv = dev->private;
+	devpriv = kzalloc(sizeof(*devpriv), GFP_KERNEL);
+	if (!devpriv)
+		return -ENOMEM;
+	dev->private = devpriv;
 
 	ret = comedi_alloc_subdevices(dev, 3);
 	if (ret)
-- 
2.34.1