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media: videobuf2: Fix length check for single plane dmabuf queueing

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Check against length in v4l2_buffer rather than vb2_buffer when the
buffer is a dmabuf. This makes the single plane test the same as the
existing multiplanar test.

Signed-off-by: John Cox <jc@kynesim.co.uk>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
This commit is contained in:
John Cox 2020-06-17 15:21:52 +02:00 committed by Mauro Carvalho Chehab
parent 906dceb48d
commit 961d3b27a2
1 changed files with 2 additions and 1 deletions
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3
drivers/media/common/videobuf2/videobuf2-v4l2.c
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@ -117,7 +117,8 @@ static int __verify_length(struct vb2_buffer *vb, const struct v4l2_buffer *b)
return -EINVAL;
}
} else {
length = (b->memory == VB2_MEMORY_USERPTR)
length = (b->memory == VB2_MEMORY_USERPTR ||
b->memory == VB2_MEMORY_DMABUF)
? b->length : vb->planes[0].length;
if (b->bytesused > length)