staging: comedi: dt3000: use cfc_check_trigger_arg_*() helpers

Use the new helpers in the step 3 tests of dt3k_ai_cmdtest().

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/dt3000.c b/drivers/staging/comedi/drivers/dt3000.c
index 71c2495..f6d4ebd 100644 (file)
--- a/drivers/staging/comedi/drivers/dt3000.c
+++ b/drivers/staging/comedi/drivers/dt3000.c
@@ -468,51 +468,30 @@ static int dt3k_ai_cmdtest(struct comedi_device *dev,
        if (err)
                return 2;
 
-       /* step 3: make sure arguments are trivially compatible */
+       /* Step 3: check if arguments are trivially valid */
 
-       if (cmd->start_arg != 0) {
-               cmd->start_arg = 0;
-               err++;
-       }
+       err |= cfc_check_trigger_arg_is(&cmd->start_arg, 0);
 
        if (cmd->scan_begin_src == TRIG_TIMER) {
-               if (cmd->scan_begin_arg < this_board->ai_speed) {
-                       cmd->scan_begin_arg = this_board->ai_speed;
-                       err++;
-               }
-               if (cmd->scan_begin_arg > 100 * 16 * 65535) {
-                       cmd->scan_begin_arg = 100 * 16 * 65535;
-                       err++;
-               }
+               err |= cfc_check_trigger_arg_min(&cmd->scan_begin_arg,
+                                                this_board->ai_speed);
+               err |= cfc_check_trigger_arg_max(&cmd->scan_begin_arg,
+                                                100 * 16 * 65535);
        }
 
        if (cmd->convert_src == TRIG_TIMER) {
-               if (cmd->convert_arg < this_board->ai_speed) {
-                       cmd->convert_arg = this_board->ai_speed;
-                       err++;
-               }
-               if (cmd->convert_arg > 50 * 16 * 65535) {
-                       cmd->convert_arg = 50 * 16 * 65535;
-                       err++;
-               }
+               err |= cfc_check_trigger_arg_min(&cmd->convert_arg,
+                                                this_board->ai_speed);
+               err |= cfc_check_trigger_arg_max(&cmd->convert_arg,
+                                                50 * 16 * 65535);
        }
 
-       if (cmd->scan_end_arg != cmd->chanlist_len) {
-               cmd->scan_end_arg = cmd->chanlist_len;
-               err++;
-       }
-       if (cmd->stop_src == TRIG_COUNT) {
-               if (cmd->stop_arg > 0x00ffffff) {
-                       cmd->stop_arg = 0x00ffffff;
-                       err++;
-               }
-       } else {
-               /* TRIG_NONE */
-               if (cmd->stop_arg != 0) {
-                       cmd->stop_arg = 0;
-                       err++;
-               }
-       }
+       err |= cfc_check_trigger_arg_is(&cmd->scan_end_arg, cmd->chanlist_len);
+
+       if (cmd->stop_src == TRIG_COUNT)
+               err |= cfc_check_trigger_arg_max(&cmd->stop_arg, 0x00ffffff);
+       else    /* TRIG_NONE */
+               err |= cfc_check_trigger_arg_is(&cmd->stop_arg, 0);
 
        if (err)
                return 3;