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staging: comedi: adq12b: remove need for some local variables

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The 'unipolar' and 'differential' local variables are not needed
in the adb12b_attach() function. Just use the cached private
data variables.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Cc: Ian Abbott <abbotti@mev.co.uk>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
H Hartley Sweeten 2013-04-09 16:24:20 -07:00 committed by Greg Kroah-Hartman
parent b8c5d2ca05
commit f19df8b0c0
1 changed files with 4 additions and 8 deletions
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12
drivers/staging/comedi/drivers/adq12b.c
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@ -213,12 +213,8 @@ static int adq12b_attach(struct comedi_device *dev, struct comedi_devconfig *it)
{
struct adq12b_private *devpriv;
struct comedi_subdevice *s;
int unipolar, differential;
int ret;
unipolar = it->options[1];
differential = it->options[2];
ret = comedi_request_region(dev, it->options[0], ADQ12B_SIZE);
if (ret)
return ret;
@ -228,8 +224,8 @@ static int adq12b_attach(struct comedi_device *dev, struct comedi_devconfig *it)
return -ENOMEM;
dev->private = devpriv;
devpriv->unipolar = unipolar;
devpriv->differential = differential;
devpriv->unipolar = it->options[1];
devpriv->differential = it->options[2];
devpriv->digital_state = 0;
/*
* initialize channel and range to -1 so we make sure we
@ -245,7 +241,7 @@ static int adq12b_attach(struct comedi_device *dev, struct comedi_devconfig *it)
s = &dev->subdevices[0];
/* analog input subdevice */
s->type = COMEDI_SUBD_AI;
if (differential) {
if (devpriv->differential) {
s->subdev_flags = SDF_READABLE | SDF_GROUND | SDF_DIFF;
s->n_chan = 8;
} else {
@ -253,7 +249,7 @@ static int adq12b_attach(struct comedi_device *dev, struct comedi_devconfig *it)
s->n_chan = 16;
}
if (unipolar)
if (devpriv->unipolar)
s->range_table = &range_adq12b_ai_unipolar;
else
s->range_table = &range_adq12b_ai_bipolar;