tree a4641cd1727d055232b2cef75fbcc3ab73e7de0b
parent 6f32a8c97f11eb074027052b6b507891e5c9d8b1
author Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> 1434714607 -0300
committer Mauro Carvalho Chehab <mchehab@osg.samsung.com> 1434977578 -0300

[media] vb2: Don't WARN when v4l2_buffer.bytesused is 0 for multiplanar buffers

Commit f61bf13b6a07 ("[media] vb2: add allow_zero_bytesused flag to the
vb2_queue struct") added a WARN_ONCE to catch usage of a deprecated API
using a zero value for v4l2_buffer.bytesused.

However, the condition is checked incorrectly, as the v4L2_buffer
bytesused field is supposed to be ignored for multiplanar buffers. This
results in spurious warnings when using the multiplanar API.

Fix it by checking v4l2_buffer.bytesused for uniplanar buffers and
v4l2_plane.bytesused for multiplanar buffers.

Fixes: f61bf13b6a07 ("[media] vb2: add allow_zero_bytesused flag to the vb2_queue struct")

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Cc: stable@vger.kernel.org # for v4.0
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>