staging: comedi: amplc_dio200: remove subdevice pointer math

Convert the comedi_subdevice access from pointer math to array
access.

Use a local variable for the subdevice pointer to keep the line
< 80 chars.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/staging/comedi/drivers/amplc_dio200.c b/drivers/staging/comedi/drivers/amplc_dio200.c
index 585889282b25fbf1a64c4d9b9599787d2d82923c..b7cfc13a951f1081a14013b759b57628cb72338d 100644 (file)
--- a/drivers/staging/comedi/drivers/amplc_dio200.c
+++ b/drivers/staging/comedi/drivers/amplc_dio200.c
@@ -978,15 +978,15 @@ static irqreturn_t dio200_interrupt(int irq, void *d)
 {
        struct comedi_device *dev = d;
        struct dio200_private *devpriv = dev->private;
+       struct comedi_subdevice *s;
        int handled;
 
        if (!dev->attached)
                return IRQ_NONE;
 
        if (devpriv->intr_sd >= 0) {
-               handled = dio200_handle_read_intr(dev,
-                                                 dev->subdevices +
-                                                 devpriv->intr_sd);
+               s = &dev->subdevices[devpriv->intr_sd];
+               handled = dio200_handle_read_intr(dev, s);
        } else {
                handled = 0;
        }