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staging: comedi: amplc_dio200_common: use comedi_cmd pointer

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Use the local variable to access the comedi_cmd as a pointer
in dio200_read_scan_intr() instead of getting to it from the
comedi_subdevice pointer.

Remove the unnecessary local variable 'len', this is just the
cmd->chanlist_len.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
H Hartley Sweeten 2014-05-27 10:30:47 -07:00 committed by Greg Kroah-Hartman
parent 9dad12fe47
commit 71ba7506f0
1 changed files with 3 additions and 4 deletions
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7
drivers/staging/comedi/drivers/amplc_dio200_common.c
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@ -312,12 +312,11 @@ static void dio200_read_scan_intr(struct comedi_device *dev,
struct dio200_subdev_intr *subpriv = s->private;
struct comedi_cmd *cmd = &s->async->cmd;
unsigned short val;
unsigned int n, ch, len;
unsigned int n, ch;
val = 0;
len = s->async->cmd.chanlist_len;
for (n = 0; n < len; n++) {
ch = CR_CHAN(s->async->cmd.chanlist[n]);
for (n = 0; n < cmd->chanlist_len; n++) {
ch = CR_CHAN(cmd->chanlist[n]);
if (triggered & (1U << ch))
val |= (1U << n);
}