diff options
Diffstat (limited to 'drivers/media/radio/wl128x/fmdrv_v4l2.c')
| -rw-r--r-- | drivers/media/radio/wl128x/fmdrv_v4l2.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/drivers/media/radio/wl128x/fmdrv_v4l2.c b/drivers/media/radio/wl128x/fmdrv_v4l2.c index ec1d52f38904..4f5c43d2566c 100644 --- a/drivers/media/radio/wl128x/fmdrv_v4l2.c +++ b/drivers/media/radio/wl128x/fmdrv_v4l2.c @@ -28,6 +28,8 @@ * */ +#include <linux/export.h> + #include "fmdrv.h" #include "fmdrv_v4l2.h" #include "fmdrv_common.h" @@ -84,12 +86,14 @@ 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) @@ -557,7 +561,7 @@ int fm_v4l2_init_video_device(struct fmdev *fmdev, int radio_nr) 255, 1, 255); if (ctrl) - ctrl->is_volatile = 1; + ctrl->flags |= V4L2_CTRL_FLAG_VOLATILE; return 0; } |