[PATCH 28/46] staging: comedi: gsc_hpdi: use cfc_check_trigger_arg_*() helpers
H Hartley Sweeten
hartleys at visionengravers.com
Wed Nov 14 00:55:56 UTC 2012
Use the new helpers in the step 3 tests of di_cmd_test().
Signed-off-by: H Hartley Sweeten <hsweeten at visionengravers.com>
Cc: Ian Abbott <abbotti at mev.co.uk>
Cc: Greg Kroah-Hartman <gregkh at linuxfoundation.org>
---
drivers/staging/comedi/drivers/gsc_hpdi.c | 19 +++++--------------
1 file changed, 5 insertions(+), 14 deletions(-)
diff --git a/drivers/staging/comedi/drivers/gsc_hpdi.c b/drivers/staging/comedi/drivers/gsc_hpdi.c
index 77b86820..eb3cb80 100644
--- a/drivers/staging/comedi/drivers/gsc_hpdi.c
+++ b/drivers/staging/comedi/drivers/gsc_hpdi.c
@@ -641,29 +641,20 @@ static int di_cmd_test(struct comedi_device *dev, struct comedi_subdevice *s,
if (err)
return 2;
- /* step 3: make sure arguments are trivially compatible */
+ /* Step 3: check if arguments are trivially valid */
if (!cmd->chanlist_len) {
cmd->chanlist_len = 32;
- err++;
- }
- if (cmd->scan_end_arg != cmd->chanlist_len) {
- cmd->scan_end_arg = cmd->chanlist_len;
- err++;
+ err |= -EINVAL;
}
+ err |= cfc_check_trigger_arg_is(&cmd->scan_end_arg, cmd->chanlist_len);
switch (cmd->stop_src) {
case TRIG_COUNT:
- if (!cmd->stop_arg) {
- cmd->stop_arg = 1;
- err++;
- }
+ err |= cfc_check_trigger_arg_min(&cmd->stop_arg, 1);
break;
case TRIG_NONE:
- if (cmd->stop_arg != 0) {
- cmd->stop_arg = 0;
- err++;
- }
+ err |= cfc_check_trigger_arg_is(&cmd->stop_arg, 0);
break;
default:
break;
--
1.7.11
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