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 <hsweeten@visionengravers.com> Cc: Ian Abbott <abbotti@mev.co.uk> Cc: Frank Mori Hess <fmhess@users.sourceforge.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
parent
34cfcf9acc
commit
3e189f08ef
1 changed files with 4 additions and 2 deletions
|
@ -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);
|
||||
}
|
||||
}
|
||||
|
|
Reference in a new issue