5.4-stable review patch. If anyone has any objections, please let me know.
------------------
From: Irui Wang <irui.wang@xxxxxxxxxxxx>
[ Upstream commit dfa2d6e07432270330ae191f50a0e70636a4cd2b ]
"fb_use_list" is used to store used or referenced frame buffers for
vp9 stateful decoder. "NULL" should be returned when getting target
frame buffer failed from "fb_use_list", not a random unexpected one.
Fixes: f77e89854b3e ("[media] vcodec: mediatek: Add Mediatek VP9 Video Decoder Driver")
Signed-off-by: Irui Wang <irui.wang@xxxxxxxxxxxx>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@xxxxxxxxxxxxx>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
drivers/media/platform/mtk-vcodec/vdec/vdec_vp9_if.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/drivers/media/platform/mtk-vcodec/vdec/vdec_vp9_if.c b/drivers/media/platform/mtk-vcodec/vdec/vdec_vp9_if.c
index 5066c283d86d1..2fd7d913fd640 100644
--- a/drivers/media/platform/mtk-vcodec/vdec/vdec_vp9_if.c
+++ b/drivers/media/platform/mtk-vcodec/vdec/vdec_vp9_if.c
@@ -222,10 +222,11 @@ static struct vdec_fb *vp9_rm_from_fb_use_list(struct vdec_vp9_inst
if (fb->base_y.va == addr) {
list_move_tail(&node->list,
&inst->available_fb_node_list);
- break;
+ return fb;
}
}
- return fb;
+
+ return NULL;
}
static void vp9_add_to_fb_free_list(struct vdec_vp9_inst *inst,
--
2.40.1
