From 3e189f08ef81e27aeccd2c2fb55175451f9faa71 Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Wed, 13 Jun 2012 15:42:28 -0700 Subject: [PATCH] staging: comedi: 8255: check for failure of subdev_8255_init The initialization of the 8255 subdevice can fail. Make sure to check for it. Signed-off-by: H Hartley Sweeten Cc: Ian Abbott Cc: Frank Mori Hess Signed-off-by: Greg Kroah-Hartman --- drivers/staging/comedi/drivers/8255.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/drivers/staging/comedi/drivers/8255.c b/drivers/staging/comedi/drivers/8255.c index da86a04b70f..4cdd00762e8 100644 --- a/drivers/staging/comedi/drivers/8255.c +++ b/drivers/staging/comedi/drivers/8255.c @@ -342,7 +342,7 @@ int subdev_8255_init_irq(struct comedi_device *dev, struct comedi_subdevice *s, int ret; ret = subdev_8255_init(dev, s, io, iobase); - if (ret < 0) + if (ret) return ret; s->do_cmdtest = subdev_8255_cmdtest; @@ -399,7 +399,9 @@ static int dev_8255_attach(struct comedi_device *dev, s->type = COMEDI_SUBD_UNUSED; } else { - subdev_8255_init(dev, s, NULL, iobase); + ret = subdev_8255_init(dev, s, NULL, iobase); + if (ret) + return ret; dev_info(dev->class_dev, "0x%04lx\n", iobase); } }