diff options
| author | Mike Isely <isely@pobox.com> | 2007-01-20 00:30:23 -0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@infradead.org> | 2007-02-21 13:34:40 -0200 |
| commit | c1c2680d922cd36338cf3efaf4ce0067c3e26eb1 (patch) | |
| tree | 5764abf23a7a5112704018f7480d1a3605df4ca1 /drivers/media/video | |
| parent | af75453860569b6110fbf43c7113f52f698d37a3 (diff) | |
V4L/DVB (5089): Pvrusb2: V4L EXT_CTRLS fixup
Attempts to enumerate or operate on a group of EXT_CTRLS where the
group size is zero is OK; don't fail on such operations. At least one
application uses this to probe for the existence of this API so let it
succeed.
Signed-off-by: Mike Isely <isely@pobox.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
Diffstat (limited to 'drivers/media/video')
| -rw-r--r-- | drivers/media/video/pvrusb2/pvrusb2-v4l2.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/media/video/pvrusb2/pvrusb2-v4l2.c b/drivers/media/video/pvrusb2/pvrusb2-v4l2.c index 5b1260c5ff5b..91c422599877 100644 --- a/drivers/media/video/pvrusb2/pvrusb2-v4l2.c +++ b/drivers/media/video/pvrusb2/pvrusb2-v4l2.c @@ -636,6 +636,7 @@ static int pvr2_v4l2_do_ioctl(struct inode *inode, struct file *file, struct v4l2_ext_control *ctrl; unsigned int idx; int val; + ret = 0; for (idx = 0; idx < ctls->count; idx++) { ctrl = ctls->controls + idx; ret = pvr2_ctrl_get_value( @@ -658,6 +659,7 @@ static int pvr2_v4l2_do_ioctl(struct inode *inode, struct file *file, (struct v4l2_ext_controls *)arg; struct v4l2_ext_control *ctrl; unsigned int idx; + ret = 0; for (idx = 0; idx < ctls->count; idx++) { ctrl = ctls->controls + idx; ret = pvr2_ctrl_set_value( @@ -680,6 +682,7 @@ static int pvr2_v4l2_do_ioctl(struct inode *inode, struct file *file, unsigned int idx; /* For the moment just validate that the requested control actually exists. */ + ret = 0; for (idx = 0; idx < ctls->count; idx++) { ctrl = ctls->controls + idx; pctl = pvr2_hdw_get_ctrl_v4l(hdw,ctrl->id); |