Use the comedi_fc helper cfc_check_trigger_arg_is() to validate the
trigger argument when the source is TRIG_TIMER.
All the arguments are unsigned int, change the local variable to an
unsigned int and rename it for aesthetic reasons.
Signed-off-by: H Hartley Sweeten <hswee...@visionengravers.com>
Reviewed-by: Ian Abbott <abbo...@mev.co.uk>
Cc: Greg Kroah-Hartman <gre...@linuxfoundation.org>
---
drivers/staging/comedi/drivers/pcl711.c | 10 ++++------
1 file changed, 4 insertions(+), 6 deletions(-)
diff --git a/drivers/staging/comedi/drivers/pcl711.c
b/drivers/staging/comedi/drivers/pcl711.c
index ef3ebee..d879052 100644
--- a/drivers/staging/comedi/drivers/pcl711.c
+++ b/drivers/staging/comedi/drivers/pcl711.c
@@ -295,8 +295,8 @@ static int pcl711_ai_cmdtest(struct comedi_device *dev,
struct comedi_subdevice *s, struct comedi_cmd *cmd)
{
struct pcl711_private *devpriv = dev->private;
- int tmp;
int err = 0;
+ unsigned int arg;
/* Step 1 : check if triggers are trivially valid */
@@ -344,14 +344,12 @@ static int pcl711_ai_cmdtest(struct comedi_device *dev,
/* step 4 */
if (cmd->scan_begin_src == TRIG_TIMER) {
- tmp = cmd->scan_begin_arg;
+ arg = cmd->scan_begin_arg;
i8253_cascade_ns_to_timer(I8254_OSC_BASE_2MHZ,
&devpriv->divisor1,
&devpriv->divisor2,
- &cmd->scan_begin_arg,
- cmd->flags);
- if (tmp != cmd->scan_begin_arg)
- err++;
+ &arg, cmd->flags);
+ err |= cfc_check_trigger_arg_is(&cmd->scan_begin_arg, arg);
}
if (err)
--
1.9.2
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