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drm/mediatek: Check return value of mtk_drm_ddp_comp_for_plane.
authorPi-Hsun Shih <pihsun@chromium.org>
Mon, 18 Nov 2019 06:18:05 +0000 (14:18 +0800)
committerCK Hu <ck.hu@mediatek.com>
Fri, 20 Dec 2019 08:19:10 +0000 (16:19 +0800)
commit5bbb71cda6da51d5dd1ca6efd7e0626ad3e2f669
treef4ba097696b552b8685ad1bcb40bc3e75d76c935
parente42617b825f8073569da76dc4510bfa019b1c35a
drm/mediatek: Check return value of mtk_drm_ddp_comp_for_plane.

The mtk_drm_ddp_comp_for_plane can return NULL, but the usage doesn't
check for it. Add check for it.

Fixes: d6b53f68356f ("drm/mediatek: Add helper to get component for a plane")
Signed-off-by: Pi-Hsun Shih <pihsun@chromium.org>
Signed-off-by: CK Hu <ck.hu@mediatek.com>
drivers/gpu/drm/mediatek/mtk_drm_crtc.c