[PATCH AUTOSEL 6.6 36/58] media: videobuf2-core: clear memory related fields in __vb2_plane_dmabuf_put()

Sasha Levin
2024-10-04T18:26:08Z

From: Yunke Cao <yunkec@chromium.org>

[ Upstream commit 6a9c97ab6b7e85697e0b74e86062192a5ffffd99 ]

Clear vb2_plane's memory related fields in __vb2_plane_dmabuf_put(),
including bytesused, length, fd and data_offset.

Remove the duplicated code in __prepare_dmabuf().

Signed-off-by: Yunke Cao <yunkec@chromium.org>
Acked-by: Tomasz Figa <tfiga@chromium.org>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/media/common/videobuf2/videobuf2-core.c | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/media/common/videobuf2/videobuf2-core.c b/drivers/media/common/videobuf2/videobuf2-core.c
index 468191438849e..29bfc2bf796b6 100644
--- a/drivers/media/common/videobuf2/videobuf2-core.c
+++ b/drivers/media/common/videobuf2/videobuf2-core.c
@@ -302,6 +302,10 @@ static void __vb2_plane_dmabuf_put(struct vb2_buffer *vb, struct vb2_plane *p)
p->mem_priv = NULL;
p->dbuf = NULL;
p->dbuf_mapped = 0;
+ p->bytesused = 0;
+ p->length = 0;
+ p->m.fd = 0;
+ p->data_offset = 0;
}

/*
@@ -1296,10 +1300,6 @@ static int __prepare_dmabuf(struct vb2_buffer *vb)

/* Release previously acquired memory if present */
__vb2_plane_dmabuf_put(vb, &vb->planes[plane]);
- vb->planes[plane].bytesused = 0;
- vb->planes[plane].length = 0;
- vb->planes[plane].m.fd = 0;
- vb->planes[plane].data_offset = 0;

/* Acquire each plane's memory */
mem_priv = call_ptr_memop(attach_dmabuf,
--
2.43.0