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staging: comedi: ni_daq_dio24: remove subdevice pointer math

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Convert the comedi_subdevice access from pointer math to array
access.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
H Hartley Sweeten 2012-09-05 18:49:34 -07:00 • committed by Greg Kroah-Hartman
parent fe2e334a33
commit 06e915e2ac
1 changed files with 7 additions and 3 deletions
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10
drivers/staging/comedi/drivers/ni_daq_dio24.c
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@ -164,7 +164,7 @@ static int dio24_attach(struct comedi_device *dev, struct comedi_devconfig *it)
return ret; return ret;
/* 8255 dio */ /* 8255 dio */
s = dev->subdevices + 0; s = &dev->subdevices[0];
subdev_8255_init(dev, s, NULL, dev->iobase); subdev_8255_init(dev, s, NULL, dev->iobase);
return 0; return 0;
@ -172,8 +172,12 @@ static int dio24_attach(struct comedi_device *dev, struct comedi_devconfig *it)
static void dio24_detach(struct comedi_device *dev) static void dio24_detach(struct comedi_device *dev)
{ {
if (dev->subdevices) struct comedi_subdevice *s;
subdev_8255_cleanup(dev, dev->subdevices + 0);
if (dev->subdevices) {
s = &dev->subdevices[0];
subdev_8255_cleanup(dev, s);
}
if (thisboard->bustype != pcmcia_bustype && dev->iobase) if (thisboard->bustype != pcmcia_bustype && dev->iobase)
release_region(dev->iobase, DIO24_SIZE); release_region(dev->iobase, DIO24_SIZE);
if (dev->irq) if (dev->irq)