From: H Hartley Sweeten <hartleys@visionengravers.com>
Date: Wed, 14 Nov 2012 00:58:32 +0000 (-0700)
Subject: staging: comedi: pcl818: use cfc_check_trigger_arg_*() helpers
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=8efdc1bf560338b3d40f9eb9985576d35c6eeec7;p=linux-beck.git

staging: comedi: pcl818: use cfc_check_trigger_arg_*() helpers

Use the new helpers in the step 3 tests of 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/pcl818.c b/drivers/staging/comedi/drivers/pcl818.c
index c94f289e3f3a..06127a5f62a0 100644
--- a/drivers/staging/comedi/drivers/pcl818.c
+++ b/drivers/staging/comedi/drivers/pcl818.c
@@ -1294,45 +1294,23 @@ static int ai_cmdtest(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->start_arg != 0) {
-		cmd->start_arg = 0;
-		err++;
-	}
+	err |= cfc_check_trigger_arg_is(&cmd->start_arg, 0);
+	err |= cfc_check_trigger_arg_is(&cmd->scan_begin_arg, 0);
 
-	if (cmd->scan_begin_arg != 0) {
-		cmd->scan_begin_arg = 0;
-		err++;
-	}
+	if (cmd->convert_src == TRIG_TIMER)
+		err |= cfc_check_trigger_arg_min(&cmd->convert_arg,
+						 board->ns_min);
+	else	/* TRIG_EXT */
+		err |= cfc_check_trigger_arg_is(&cmd->convert_arg, 0);
 
-	if (cmd->convert_src == TRIG_TIMER) {
-		if (cmd->convert_arg < board->ns_min) {
-			cmd->convert_arg = board->ns_min;
-			err++;
-		}
-	} else {		/* TRIG_EXT */
-		if (cmd->convert_arg != 0) {
-			cmd->convert_arg = 0;
-			err++;
-		}
-	}
+	err |= cfc_check_trigger_arg_is(&cmd->scan_end_arg, cmd->chanlist_len);
 
-	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) {
-			cmd->stop_arg = 1;
-			err++;
-		}
-	} else {		/* TRIG_NONE */
-		if (cmd->stop_arg != 0) {
-			cmd->stop_arg = 0;
-			err++;
-		}
-	}
+	if (cmd->stop_src == TRIG_COUNT)
+		err |= cfc_check_trigger_arg_min(&cmd->stop_arg, 1);
+	else	/* TRIG_NONE */
+		err |= cfc_check_trigger_arg_is(&cmd->stop_arg, 0);
 
 	if (err)
 		return 3;