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staging: comedi: usbdux: 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 18:58:15 -07:00 committed by Greg Kroah-Hartman
parent 015ebbe86d
commit 4760904fb4
1 changed files with 8 additions and 8 deletions
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16
drivers/staging/comedi/drivers/usbdux.c
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@ -404,7 +404,7 @@ static void usbduxsub_ai_IsocIrq(struct urb *urb)
/* the private structure of the subdevice is struct usbduxsub */
this_usbduxsub = this_comedidev->private;
/* subdevice which is the AD converter */
s = this_comedidev->subdevices + SUBDEV_AD;
s = &this_comedidev->subdevices[SUBDEV_AD];
/* first we test if something unusual has just happened */
switch (urb->status) {
@ -604,7 +604,7 @@ static void usbduxsub_ao_IsocIrq(struct urb *urb)
/* the private structure of the subdevice is struct usbduxsub */
this_usbduxsub = this_comedidev->private;
s = this_comedidev->subdevices + SUBDEV_DA;
s = &this_comedidev->subdevices[SUBDEV_DA];
switch (urb->status) {
case 0:
@ -1947,7 +1947,7 @@ static void usbduxsub_pwm_irq(struct urb *urb)
/* the private structure of the subdevice is struct usbduxsub */
this_usbduxsub = this_comedidev->private;
s = this_comedidev->subdevices + SUBDEV_DA;
s = &this_comedidev->subdevices[SUBDEV_DA];
switch (urb->status) {
case 0:
@ -2331,7 +2331,7 @@ static int usbdux_attach_common(struct comedi_device *dev,
dev->private = udev;
/* the first subdevice is the A/D converter */
s = dev->subdevices + SUBDEV_AD;
s = &dev->subdevices[SUBDEV_AD];
/* the URBs get the comedi subdevice */
/* which is responsible for reading */
/* this is the subdevice which reads data */
@ -2358,7 +2358,7 @@ static int usbdux_attach_common(struct comedi_device *dev,
s->range_table = (&range_usbdux_ai_range);
/* analog out */
s = dev->subdevices + SUBDEV_DA;
s = &dev->subdevices[SUBDEV_DA];
/* analog out */
s->type = COMEDI_SUBD_AO;
/* backward pointer */
@ -2384,7 +2384,7 @@ static int usbdux_attach_common(struct comedi_device *dev,
s->insn_write = usbdux_ao_insn_write;
/* digital I/O */
s = dev->subdevices + SUBDEV_DIO;
s = &dev->subdevices[SUBDEV_DIO];
s->type = COMEDI_SUBD_DIO;
s->subdev_flags = SDF_READABLE | SDF_WRITABLE;
s->n_chan = 8;
@ -2396,7 +2396,7 @@ static int usbdux_attach_common(struct comedi_device *dev,
s->private = NULL;
/* counter */
s = dev->subdevices + SUBDEV_COUNTER;
s = &dev->subdevices[SUBDEV_COUNTER];
s->type = COMEDI_SUBD_COUNTER;
s->subdev_flags = SDF_WRITABLE | SDF_READABLE;
s->n_chan = 4;
@ -2407,7 +2407,7 @@ static int usbdux_attach_common(struct comedi_device *dev,
if (udev->high_speed) {
/* timer / pwm */
s = dev->subdevices + SUBDEV_PWM;
s = &dev->subdevices[SUBDEV_PWM];
s->type = COMEDI_SUBD_PWM;
s->subdev_flags = SDF_WRITABLE | SDF_PWM_HBRIDGE;
s->n_chan = 8;