media: mediatek: vcodec: Return NULL if no vdec_fb is found

[ Upstream commit dfa2d6e074 ]

"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: f77e89854b ("[media] vcodec: mediatek: Add Mediatek VP9 Video Decoder Driver")
Signed-off-by: Irui Wang <irui.wang@mediatek.com>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Irui Wang 2023-07-05 17:14:41 +08:00 committed by Greg Kroah-Hartman
parent b4ee61e5a1
commit a356b60031

View file

@ -226,10 +226,11 @@ 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,