From: H Hartley Sweeten <hsweeten@visionengravers.com>
Date: Fri, 22 Mar 2013 16:47:20 +0000 (-0700)
Subject: staging: comedi: ni_labpc: remove unnecessary test of dev->irq
X-Git-Url: http://drtracing.org/?a=commitdiff_plain;h=9718e5dfd7e19a2fb0d98a9afdb0459ba6b5d41f;p=deliverable%2Flinux.git

staging: comedi: ni_labpc: remove unnecessary test of dev->irq

The ai subdevice (*do_cmd) pointer is only initialized if the
driver has successfully requested the interrupt. The extra test
in labpc_ai_cmd() is not necessary.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Cc: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

diff --git a/drivers/staging/comedi/drivers/ni_labpc.c b/drivers/staging/comedi/drivers/ni_labpc.c
index f9c720938e27..56d60847f820 100644
--- a/drivers/staging/comedi/drivers/ni_labpc.c
+++ b/drivers/staging/comedi/drivers/ni_labpc.c
@@ -858,11 +858,6 @@ static int labpc_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s)
 	enum scan_mode mode;
 	unsigned long flags;
 
-	if (!dev->irq) {
-		comedi_error(dev, "no irq assigned, cannot perform command");
-		return -1;
-	}
-
 	range = CR_RANGE(cmd->chanlist[0]);
 	aref = CR_AREF(cmd->chanlist[0]);