[PATCH 3.16.y-ckt 15/17] staging: comedi: ni_tiocmd: change mistaken use of start_src for start_arg

[Luis Henriques]

3.16.7-ckt27 -stable review patch.  If anyone has any objections, please let me know.

---8<------------------------------------------------------------

From: "Spencer E. Olson" <olsonse@xxxxxxxxx>

commit 1fd24a4702d2af0ea4d5845126cf57d4d1796216 upstream.

This fixes a bug in function ni_tio_input_inttrig().  The trigger number
should be compared to cmd->start_arg, not cmd->start_src.

Fixes: 6a760394d7eb ("staging: comedi: ni_tiocmd: clarify the cmd->start_arg validation and use")
Signed-off-by: Spencer E. Olson <olsonse@xxxxxxxxx>
Reviewed-by: Ian Abbott <abbotti@xxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
Cc: Ian Abbott <abbotti@xxxxxxxxx>
Signed-off-by: Luis Henriques <luis.henriques@xxxxxxxxxxxxx>
---
 drivers/staging/comedi/drivers/ni_tiocmd.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/staging/comedi/drivers/ni_tiocmd.c b/drivers/staging/comedi/drivers/ni_tiocmd.c
index 2557ab48cb6c..db4dc1410342 100644
--- a/drivers/staging/comedi/drivers/ni_tiocmd.c
+++ b/drivers/staging/comedi/drivers/ni_tiocmd.c
@@ -98,7 +98,7 @@ static int ni_tio_input_inttrig(struct comedi_device *dev,
 
 	BUG_ON(counter == NULL);
 
-	if (trig_num != cmd->start_src)
+	if (trig_num != cmd->start_arg)
 		return -EINVAL;
 
 	spin_lock_irqsave(&counter->lock, flags);