From 77a3c6fd90c94f635edb00d4a65f485687538791 Mon Sep 17 00:00:00 2001
From: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Date: Fri, 19 Jun 2015 08:50:07 -0300
Subject: [PATCH] [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>
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