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

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>

1 files changed, 4 insertions, 8 deletions

diff --git a/drivers/staging/comedi/drivers/adq12b.c b/drivers/staging/comedi/drivers/adq12b.c
index 71ed5904382e..44e8f0e2d601 100644
--- a/drivers/staging/comedi/drivers/adq12b.c
+++ b/drivers/staging/comedi/drivers/adq12b.c
@@ -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;