[PATCH] staging: comedi: ni_mio_common: use CR_CHAN more consistently

[Spencer E. Olson]

Signed-off-by: Spencer E. Olson <olsonse at umich.edu>
---
To: devel at driverdev.osuosl.org
Cc: Ian Abbott <abbotti at mev.co.uk>
Cc: H Hartley Sweeten <hsweeten at visionengravers.com>
Cc: Greg Kroah-Hartman <gregkh at linuxfoundation.org>

 drivers/staging/comedi/drivers/ni_mio_common.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/staging/comedi/drivers/ni_mio_common.c b/drivers/staging/comedi/drivers/ni_mio_common.c
index 6cc304a..fc4d6b0 100644
--- a/drivers/staging/comedi/drivers/ni_mio_common.c
+++ b/drivers/staging/comedi/drivers/ni_mio_common.c
@@ -2408,7 +2408,8 @@ static int ni_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s)
 		ni_stc_writew(dev, mode2, NISTC_AI_MODE2_REG);
 		break;
 	case TRIG_EXT:
-		mode1 |= NISTC_AI_MODE1_CONVERT_SRC(1 + cmd->convert_arg);
+		mode1 |= NISTC_AI_MODE1_CONVERT_SRC(1 +
+						    CR_CHAN(cmd->convert_arg));
 		if ((cmd->convert_arg & CR_INVERT) == 0)
 			mode1 |= NISTC_AI_MODE1_CONVERT_POLARITY;
 		ni_stc_writew(dev, mode1, NISTC_AI_MODE1_REG);
-- 
1.9.1