diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/iio/kfifo_buf.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/iio/kfifo_buf.c b/drivers/iio/kfifo_buf.c index 8a6d28ce21b2..6ec763f1202a 100644 --- a/drivers/iio/kfifo_buf.c +++ b/drivers/iio/kfifo_buf.c @@ -108,10 +108,12 @@ static int iio_read_first_n_kfifo(struct iio_buffer *r, int ret, copied; struct iio_kfifo *kf = iio_to_kfifo(r); - if (n < r->bytes_per_datum) + if (n < r->bytes_per_datum || r->bytes_per_datum == 0) return -EINVAL; ret = kfifo_to_user(&kf->kf, buf, n, &copied); + if (ret < 0) + return ret; return copied; } |