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Subject: media: Revert "media: videobuf2: Fix length check for single plane dmabuf queueing"
Author: Naushir Patuck <naush@xxxxxxxxxxxxxxx>
Date: Wed Jan 6 16:16:57 2021 +0100
The updated length check for dmabuf types broke existing usage in v4l2
userland clients.
Fixes: 961d3b27 ("media: videobuf2: Fix length check for single plane dmabuf queueing")
Cc: stable@xxxxxxxxxxxxxxx
Signed-off-by: Naushir Patuck <naush@xxxxxxxxxxxxxxx>
Tested-by: Kieran Bingham <kieran.bingham+renesas@xxxxxxxxxxxxxxxx>
Reviewed-by: Kieran Bingham <kieran.bingham+renesas@xxxxxxxxxxxxxxxx>
Reviewed-by: Laurent Pinchart <laurent.pinchart@xxxxxxxxxxxxxxxx>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xxxxxxxxx>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@xxxxxxxxxx>
drivers/media/common/videobuf2/videobuf2-v4l2.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
---
diff --git a/drivers/media/common/videobuf2/videobuf2-v4l2.c b/drivers/media/common/videobuf2/videobuf2-v4l2.c
index 96d3b2b2aa31..3f61f5863bf7 100644
--- a/drivers/media/common/videobuf2/videobuf2-v4l2.c
+++ b/drivers/media/common/videobuf2/videobuf2-v4l2.c
@@ -118,8 +118,7 @@ static int __verify_length(struct vb2_buffer *vb, const struct v4l2_buffer *b)
return -EINVAL;
}
} else {
- length = (b->memory == VB2_MEMORY_USERPTR ||
- b->memory == VB2_MEMORY_DMABUF)
+ length = (b->memory == VB2_MEMORY_USERPTR)
? b->length : vb->planes[0].length;
if (b->bytesused > length)
