drm/mediatek: Check if fb is null

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It's possible that state->base.fb is null. Add a check before access its
format.

Fixes: b6b1bb980e ("drm/mediatek: Turn off Alpha bit when plane format has no alpha")
Signed-off-by: Yongqiang Niu <yongqiang.niu@mediatek.com>
Signed-off-by: Chun-Kuang Hu <chunkuang.hu@kernel.org>

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Yongqiang Niu 2021-01-11 15:43:44 +08:00 • committed by Chun-Kuang Hu

parent 5b9576e202

commit b1d685b646

1 changed files with 1 additions and 1 deletions

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drivers/gpu/drm/mediatek/mtk_disp_ovl.c

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