diff options
| author | H Hartley Sweeten <hsweeten@visionengravers.com> | 2014-04-17 10:08:00 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2014-04-22 10:21:31 -0700 |
| commit | 4264cb64069e1c746483938c09e0df1099befd8b (patch) | |
| tree | 125cc0f27c31028433345ef820609efb70f7eb64 /drivers/staging/comedi/drivers/gsc_hpdi.c | |
| parent | bdbca9b562a2e892b77811ef2b70e1981e26b7e2 (diff) | |
staging: comedi: gsc_hpdi: validate the cmd->start_arg
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 <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/staging/comedi/drivers/gsc_hpdi.c')
| -rw-r--r-- | drivers/staging/comedi/drivers/gsc_hpdi.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/staging/comedi/drivers/gsc_hpdi.c b/drivers/staging/comedi/drivers/gsc_hpdi.c index bae4e9709135..22333c1ad88c 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; |