diff options
| -rw-r--r-- | drivers/staging/comedi/drivers.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/staging/comedi/drivers.c b/drivers/staging/comedi/drivers.c index 979aa0e88997..61161ce8e93f 100644 --- a/drivers/staging/comedi/drivers.c +++ b/drivers/staging/comedi/drivers.c @@ -60,6 +60,8 @@ int comedi_alloc_subdevices(struct comedi_device *dev, int num_subdevices) { int i; + if (num_subdevices < 1) + return -EINVAL; dev->n_subdevices = num_subdevices; dev->subdevices = kcalloc(num_subdevices, sizeof(struct comedi_subdevice), |