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authorJacob Chen <jacob2.chen@rock-chips.com>2017-09-21 19:09:21 +0800
committerJacob Chen <jacob2.chen@rock-chips.com>2017-09-21 19:10:12 +0800
commit5ab215ee7f902201d4830b0b9536135143666b42 (patch)
treec46f558db5c89def501557ae56b7413bf0deb9ec
parent1750e8d84eaaec9a2912b8d822d777255daaddee (diff)
media: videobuf2: quick fix for dmabuf typerelease-20171015
It's a bug in 4.4 kernel Change-Id: I38807830d1a4289af65ebaed9c9ab179d2328827 Signed-off-by: Jacob Chen <jacob2.chen@rock-chips.com>
-rw-r--r--drivers/media/v4l2-core/videobuf2-v4l2.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/media/v4l2-core/videobuf2-v4l2.c b/drivers/media/v4l2-core/videobuf2-v4l2.c
index 9632f378a4ad..82d2ca6308d4 100644
--- a/drivers/media/v4l2-core/videobuf2-v4l2.c
+++ b/drivers/media/v4l2-core/videobuf2-v4l2.c
@@ -105,6 +105,9 @@ static int __verify_length(struct vb2_buffer *vb, const struct v4l2_buffer *b)
length = (b->memory == VB2_MEMORY_USERPTR)
? b->length : vb->planes[0].length;
+ if (b->memory == VB2_MEMORY_DMABUF)
+ return 0;
+
if (b->bytesused > length)
return -EINVAL;
}