staging: comedi: gsc_hpdi: use cfc_check_trigger_arg_*() helpers

Use the new helpers in the step 3 tests of di_cmd_test().

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Cc: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/staging/comedi/drivers/gsc_hpdi.c b/drivers/staging/comedi/drivers/gsc_hpdi.c
index 77b8682..eb3cb80 100644 (file)
--- 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;