The cmd->start_arg should be trivially validated in Step 3 of the
(*do_cmdtest) functions. Add the necessary code.
Signed-off-by: H Hartley Sweeten <hswee...@visionengravers.com>
Cc: Ian Abbott <abbo...@mev.co.uk>
Cc: Greg Kroah-Hartman <gre...@linuxfoundation.org>
---
drivers/staging/comedi/drivers/gsc_hpdi.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/staging/comedi/drivers/gsc_hpdi.c
b/drivers/staging/comedi/drivers/gsc_hpdi.c
index bae4e97..22333c1 100644
--- a/drivers/staging/comedi/drivers/gsc_hpdi.c
+++ b/drivers/staging/comedi/drivers/gsc_hpdi.c
@@ -410,6 +410,8 @@ static int gsc_hpdi_cmd_test(struct comedi_device *dev,
/* Step 3: check if arguments are trivially valid */
+ err |= cfc_check_trigger_arg_is(&cmd->start_arg, 0);
+
if (!cmd->chanlist_len || !cmd->chanlist) {
cmd->chanlist_len = 32;
err |= -EINVAL;
--
1.8.5.2
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