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

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"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>
This commit is contained in:
Irui Wang 2023-07-05 17:14:41 +08:00 committed by Hans Verkuil
parent 89a4f369b2
commit dfa2d6e074
1 changed files with 3 additions and 2 deletions
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7
drivers/media/platform/mediatek/vcodec/vdec/vdec_vp9_if.c
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@ -226,11 +226,12 @@ 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 NULL;
}
static void vp9_add_to_fb_free_list(struct vdec_vp9_inst *inst,
struct vdec_fb *fb)