diff options
| -rw-r--r-- | drivers/staging/comedi/drivers/ni_labpc.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/staging/comedi/drivers/ni_labpc.c b/drivers/staging/comedi/drivers/ni_labpc.c index ab8b787c78b..d3a1d65fd63 100644 --- a/drivers/staging/comedi/drivers/ni_labpc.c +++ b/drivers/staging/comedi/drivers/ni_labpc.c @@ -809,6 +809,8 @@ static int labpc_find_device(struct comedi_device *dev, int bus, int slot) void labpc_common_detach(struct comedi_device *dev) { + if (!thisboard) + return; if (dev->subdevices) subdev_8255_cleanup(dev, dev->subdevices + 2); #ifdef CONFIG_ISA_DMA_API |