diff options
Diffstat (limited to 'drivers/media/v4l2-core/v4l2-ioctl.c')
| -rw-r--r-- | drivers/media/v4l2-core/v4l2-ioctl.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/media/v4l2-core/v4l2-ioctl.c b/drivers/media/v4l2-core/v4l2-ioctl.c index 2f26e9496a3..f3ced2513b2 100644 --- a/drivers/media/v4l2-core/v4l2-ioctl.c +++ b/drivers/media/v4l2-core/v4l2-ioctl.c @@ -1304,6 +1304,11 @@ static int v4l_enumstd(const struct v4l2_ioctl_ops *ops, unsigned int index = p->index, i, j = 0; const char *descr = ""; + /* Return -ENODATA if the tvnorms for the current input + or output is 0, meaning that it doesn't support this API. */ + if (id == 0) + return -ENODATA; + /* Return norm array in a canonical way */ for (i = 0; i <= index && id; i++) { /* last std value in the standards array is 0, so this |