diff options
| -rw-r--r-- | drivers/staging/comedi/drivers/amplc_dio200.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/staging/comedi/drivers/amplc_dio200.c b/drivers/staging/comedi/drivers/amplc_dio200.c index cc8931fde83..aee22fdd4e4 100644 --- a/drivers/staging/comedi/drivers/amplc_dio200.c +++ b/drivers/staging/comedi/drivers/amplc_dio200.c @@ -1429,6 +1429,8 @@ static void dio200_detach(struct comedi_device *dev) const struct dio200_layout_struct *layout; unsigned n; + if (!thisboard) + return; if (dev->irq) free_irq(dev->irq, dev); if (dev->subdevices) { |