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drm/mediatek: Check if fb is null
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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1 changed files with 1 additions and 1 deletions
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@ -291,7 +291,7 @@ void mtk_ovl_layer_config(struct device *dev, unsigned int idx,
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}
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con = ovl_fmt_convert(ovl, fmt);
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if (state->base.fb->format->has_alpha)
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if (state->base.fb && state->base.fb->format->has_alpha)
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con |= OVL_CON_AEN | OVL_CON_ALPHA;
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if (pending->rotation & DRM_MODE_REFLECT_Y) {
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