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staging: comedi: das16m1: check for subdev_8255_init() failure

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

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
H Hartley Sweeten 2013-04-18 14:32:48 -07:00 committed by Greg Kroah-Hartman
parent a0b4bccc40
commit 4b3fb0ff74
1 changed files with 3 additions and 1 deletions
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4
drivers/staging/comedi/drivers/das16m1.c
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@ -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);