[PATCH v2 05/11] staging: comedi: das16m1: check for subdev_8255_init() failure

[H Hartley Sweeten]

Make sure to check if subdev_8255_init() fails and propogate the
error code.

Signed-off-by: H Hartley Sweeten <hsweeten at visionengravers.com>
Cc: Ian Abbott <abbotti at mev.co.uk>
Cc: Greg Kroah-Hartman <gregkh at linuxfoundation.org>
---
 drivers/staging/comedi/drivers/das16m1.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/staging/comedi/drivers/das16m1.c b/drivers/staging/comedi/drivers/das16m1.c
index 02f52eb..d5f26c9 100644
--- a/drivers/staging/comedi/drivers/das16m1.c
+++ b/drivers/staging/comedi/drivers/das16m1.c
@@ -648,7 +648,9 @@ static int das16m1_attach(struct comedi_device *dev,
 
 	s = &dev->subdevices[3];
 	/* 8255 */
-	subdev_8255_init(dev, s, NULL, devpriv->extra_iobase);
+	ret = subdev_8255_init(dev, s, NULL, devpriv->extra_iobase);
+	if (ret)
+		return ret;
 
 	/*  disable upper half of hardware conversion counter so it doesn't mess with us */
 	outb(TOTAL_CLEAR, dev->iobase + DAS16M1_8254_FIRST_CNTRL);
-- 
1.8.1.4