diff options
| -rw-r--r-- | drivers/staging/comedi/drivers/amplc_pc236.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/staging/comedi/drivers/amplc_pc236.c b/drivers/staging/comedi/drivers/amplc_pc236.c index 36768b2b30a..4e4f3c15df8 100644 --- a/drivers/staging/comedi/drivers/amplc_pc236.c +++ b/drivers/staging/comedi/drivers/amplc_pc236.c @@ -574,6 +574,8 @@ static void pc236_detach(struct comedi_device *dev) { const struct pc236_board *thisboard = comedi_board(dev); + if (!thisboard) + return; if (dev->iobase) pc236_intr_disable(dev); if (dev->irq) |