diff options
| -rw-r--r-- | drivers/media/radio/wl128x/fmdrv_v4l2.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/media/radio/wl128x/fmdrv_v4l2.c b/drivers/media/radio/wl128x/fmdrv_v4l2.c index 8c0e1927697..478d1e93ada 100644 --- a/drivers/media/radio/wl128x/fmdrv_v4l2.c +++ b/drivers/media/radio/wl128x/fmdrv_v4l2.c @@ -84,12 +84,14 @@ static ssize_t fm_v4l2_fops_write(struct file *file, const char __user * buf, ret = copy_from_user(&rds, buf, sizeof(rds)); fmdbg("(%d)type: %d, text %s, af %d\n", ret, rds.text_type, rds.text, rds.af_freq); + if (ret) + return -EFAULT; fmdev = video_drvdata(file); fm_tx_set_radio_text(fmdev, rds.text, rds.text_type); fm_tx_set_af(fmdev, rds.af_freq); - return 0; + return sizeof(rds); } static u32 fm_v4l2_fops_poll(struct file *file, struct poll_table_struct *pts) |