diff options
| author | H Hartley Sweeten <hartleys@visionengravers.com> | 2012-09-05 18:46:47 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2012-09-05 20:06:28 -0700 |
| commit | 1b348f0594ec31b974cd8082dd5f1e4b5f3aa2db (patch) | |
| tree | cf030ff8e62583c80bd5f43c8b68dc499c7586fa /drivers/staging/comedi/drivers/multiq3.c | |
| parent | e49b26e779cce2a5e73b7433d9edcbd157f5a470 (diff) | |
staging: comedi: multiq3: 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>
Diffstat (limited to 'drivers/staging/comedi/drivers/multiq3.c')
| -rw-r--r-- | drivers/staging/comedi/drivers/multiq3.c | 14 |
1 files changed, 8 insertions, 6 deletions
diff --git a/drivers/staging/comedi/drivers/multiq3.c b/drivers/staging/comedi/drivers/multiq3.c index eccbe1fb4f2c..4625cb4d07c6 100644 --- a/drivers/staging/comedi/drivers/multiq3.c +++ b/drivers/staging/comedi/drivers/multiq3.c @@ -204,8 +204,10 @@ static int multiq3_encoder_insn_read(struct comedi_device *dev, static void encoder_reset(struct comedi_device *dev) { + struct comedi_subdevice *s = &dev->subdevices[4]; int chan; - for (chan = 0; chan < dev->subdevices[4].n_chan; chan++) { + + for (chan = 0; chan < s->n_chan; chan++) { int control = MULTIQ3_CONTROL_MUST | MULTIQ3_AD_MUX_EN | (chan << 3); outw(control, dev->iobase + MULTIQ3_CONTROL); @@ -258,7 +260,7 @@ static int multiq3_attach(struct comedi_device *dev, if (result < 0) return result; - s = dev->subdevices + 0; + s = &dev->subdevices[0]; /* ai subdevice */ s->type = COMEDI_SUBD_AI; s->subdev_flags = SDF_READABLE | SDF_GROUND; @@ -267,7 +269,7 @@ static int multiq3_attach(struct comedi_device *dev, s->maxdata = 0x1fff; s->range_table = &range_bipolar5; - s = dev->subdevices + 1; + s = &dev->subdevices[1]; /* ao subdevice */ s->type = COMEDI_SUBD_AO; s->subdev_flags = SDF_WRITABLE; @@ -277,7 +279,7 @@ static int multiq3_attach(struct comedi_device *dev, s->maxdata = 0xfff; s->range_table = &range_bipolar5; - s = dev->subdevices + 2; + s = &dev->subdevices[2]; /* di subdevice */ s->type = COMEDI_SUBD_DI; s->subdev_flags = SDF_READABLE; @@ -286,7 +288,7 @@ static int multiq3_attach(struct comedi_device *dev, s->maxdata = 1; s->range_table = &range_digital; - s = dev->subdevices + 3; + s = &dev->subdevices[3]; /* do subdevice */ s->type = COMEDI_SUBD_DO; s->subdev_flags = SDF_WRITABLE; @@ -296,7 +298,7 @@ static int multiq3_attach(struct comedi_device *dev, s->range_table = &range_digital; s->state = 0; - s = dev->subdevices + 4; + s = &dev->subdevices[4]; /* encoder (counter) subdevice */ s->type = COMEDI_SUBD_COUNTER; s->subdev_flags = SDF_READABLE | SDF_LSAMPL; |