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staging: comedi: pcmuio: remove subdevice pointer math 

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 18:55:08 -07:00 committed by Greg Kroah-Hartman
parent 33e101ad9d
commit 68720ae68a
1 changed files with 5 additions and 5 deletions
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10
drivers/staging/comedi/drivers/pcmuio.c
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@ -456,6 +456,7 @@ static irqreturn_t interrupt_pcmuio(int irq, void *d)
{ {
int asic, got1 = 0; int asic, got1 = 0;
struct comedi_device *dev = (struct comedi_device *)d; struct comedi_device *dev = (struct comedi_device *)d;
int i;
for (asic = 0; asic < MAX_ASICS; ++asic) { for (asic = 0; asic < MAX_ASICS; ++asic) {
if (irq == devpriv->asics[asic].irq) { if (irq == devpriv->asics[asic].irq) {
@ -507,9 +508,8 @@ static irqreturn_t interrupt_pcmuio(int irq, void *d)
printk printk
("PCMUIO DEBUG: got edge detect interrupt %d asic %d which_chans: %06x\n", ("PCMUIO DEBUG: got edge detect interrupt %d asic %d which_chans: %06x\n",
irq, asic, triggered); irq, asic, triggered);
for (s = dev->subdevices; for (i = 0; i < dev->n_subdevices; i++) {
s < dev->subdevices + dev->n_subdevices; s = &dev->subdevices[i];
++s) {
if (subpriv->intr.asic == asic) { /* this is an interrupt subdev, and it matches this asic! */ if (subpriv->intr.asic == asic) { /* this is an interrupt subdev, and it matches this asic! */
unsigned long flags; unsigned long flags;
unsigned oldevents; unsigned oldevents;
@ -811,8 +811,8 @@ static int pcmuio_attach(struct comedi_device *dev, struct comedi_devconfig *it)
for (sdev_no = 0; sdev_no < (int)dev->n_subdevices; ++sdev_no) { for (sdev_no = 0; sdev_no < (int)dev->n_subdevices; ++sdev_no) {
int byte_no; int byte_no;
s = dev->subdevices + sdev_no; s = &dev->subdevices[sdev_no];
s->private = devpriv->sprivs + sdev_no; s->private = &devpriv->sprivs[sdev_no];
s->maxdata = 1; s->maxdata = 1;
s->range_table = &range_digital; s->range_table = &range_digital;
s->subdev_flags = SDF_READABLE | SDF_WRITABLE; s->subdev_flags = SDF_READABLE | SDF_WRITABLE;