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staging: comedi: rtd520: 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 18:56:05 -07:00 committed by Greg Kroah-Hartman
parent 123c0e03a4
commit 58f2045935
1 changed files with 5 additions and 5 deletions
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10
drivers/staging/comedi/drivers/rtd520.c
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@ -783,7 +783,7 @@ static irqreturn_t rtd_interrupt(int irq, /* interrupt number (ignored) */
void *d)
{ /* our data *//* cpu context (ignored) */
struct comedi_device *dev = d;
struct comedi_subdevice *s = dev->subdevices + 0; /* analog in subdevice */
struct comedi_subdevice *s = &dev->subdevices[0];
struct rtdPrivate *devpriv = dev->private;
u32 overrun;
u16 status;
@ -1706,7 +1706,7 @@ static int rtd_attach(struct comedi_device *dev, struct comedi_devconfig *it)
if (ret)
return ret;
s = dev->subdevices + 0;
s = &dev->subdevices[0];
dev->read_subdev = s;
/* analog input subdevice */
s->type = COMEDI_SUBD_AI;
@ -1726,7 +1726,7 @@ static int rtd_attach(struct comedi_device *dev, struct comedi_devconfig *it)
s->cancel = rtd_ai_cancel;
/* s->poll = rtd_ai_poll; *//* not ready yet */
s = dev->subdevices + 1;
s = &dev->subdevices[1];
/* analog output subdevice */
s->type = COMEDI_SUBD_AO;
s->subdev_flags = SDF_WRITABLE;
@ -1736,7 +1736,7 @@ static int rtd_attach(struct comedi_device *dev, struct comedi_devconfig *it)
s->insn_write = rtd_ao_winsn;
s->insn_read = rtd_ao_rinsn;
s = dev->subdevices + 2;
s = &dev->subdevices[2];
/* digital i/o subdevice */
s->type = COMEDI_SUBD_DIO;
s->subdev_flags = SDF_READABLE | SDF_WRITABLE;
@ -1748,7 +1748,7 @@ static int rtd_attach(struct comedi_device *dev, struct comedi_devconfig *it)
s->insn_config = rtd_dio_insn_config;
/* timer/counter subdevices (not currently supported) */
s = dev->subdevices + 3;
s = &dev->subdevices[3];
s->type = COMEDI_SUBD_COUNTER;
s->subdev_flags = SDF_READABLE | SDF_WRITABLE;
s->n_chan = 3;