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staging: comedi: cb_pcidas: check for failure of subdev_8255_init

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It's possible for subdev_8255_init() to fail due to its kzalloc().
Make sure to check for this failure and pass on the error code.

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>
This commit is contained in:
H Hartley Sweeten 2012-06-26 18:03:34 -07:00 committed by Greg Kroah-Hartman
parent 0a5aed4876
commit 4f0036ef09
1 changed files with 4 additions and 1 deletions
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5
drivers/staging/comedi/drivers/cb_pcidas.c
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@ -1640,7 +1640,10 @@ static int cb_pcidas_attach(struct comedi_device *dev,
/* 8255 */
s = dev->subdevices + 2;
subdev_8255_init(dev, s, NULL, devpriv->pacer_counter_dio + DIO_8255);
ret = subdev_8255_init(dev, s, NULL,
devpriv->pacer_counter_dio + DIO_8255);
if (ret)
return ret;
/* serial EEPROM, */
s = dev->subdevices + 3;