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| author | Sakari Ailus <sakari.ailus@linux.intel.com> | 2016-04-03 16:15:00 -0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@osg.samsung.com> | 2016-04-13 16:19:05 -0300 |
| commit | e7e0c3e26587749b62d17b9dd0532874186c77f7 (patch) | |
| tree | 8af5ee3d02a1bfcd5f14d1d245636ffee6c716f2 /include/media | |
| parent | 405ddbfa68177b6169d09bc2308a39196a8eb64a (diff) | |
| download | linux-e7e0c3e26587749b62d17b9dd0532874186c77f7.tar.gz linux-e7e0c3e26587749b62d17b9dd0532874186c77f7.tar.bz2 linux-e7e0c3e26587749b62d17b9dd0532874186c77f7.zip | |
[media] videobuf2-core: Check user space planes array in dqbuf
The number of planes in videobuf2 is specific to a buffer. In order to
verify that the planes array provided by the user is long enough, a new
vb2_buf_op is required.
Call __verify_planes_array() when the dequeued buffer is known. Return an
error to the caller if there was one, otherwise remove the buffer from the
done list.
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Acked-by: Hans Verkuil <hans.verkuil@cisco.com>
Cc: stable@vger.kernel.org # for v4.4 and later
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Diffstat (limited to 'include/media')
| -rw-r--r-- | include/media/videobuf2-core.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/include/media/videobuf2-core.h b/include/media/videobuf2-core.h index 8a0f55b6c2ba..5342ff4d748f 100644 --- a/include/media/videobuf2-core.h +++ b/include/media/videobuf2-core.h @@ -375,6 +375,9 @@ struct vb2_ops { /** * struct vb2_ops - driver-specific callbacks * + * @verify_planes_array: Verify that a given user space structure contains + * enough planes for the buffer. This is called + * for each dequeued buffer. * @fill_user_buffer: given a vb2_buffer fill in the userspace structure. * For V4L2 this is a struct v4l2_buffer. * @fill_vb2_buffer: given a userspace structure, fill in the vb2_buffer. @@ -384,6 +387,7 @@ struct vb2_ops { * the vb2_buffer struct. */ struct vb2_buf_ops { + int (*verify_planes_array)(struct vb2_buffer *vb, const void *pb); void (*fill_user_buffer)(struct vb2_buffer *vb, void *pb); int (*fill_vb2_buffer)(struct vb2_buffer *vb, const void *pb, struct vb2_plane *planes); |