drm/mediatek: Add missing IS_ERR check for ovl_adaptor platform device

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platform_device_register_data() can fail and return an ERR_PTR, but the
return value is used without checking, leading to an invalid pointer
being stored in ddp_comp[].dev and passed to component_match_add() and
mtk_ddp_comp_init(), which could result in a kernel crash.

Add an IS_ERR() check to jump to the error handling path on failure.

Fixes: 0d9eee9118 ("drm/mediatek: Add drm ovl_adaptor sub driver for MT8195")
Cc: stable@vger.kernel.org
Signed-off-by: Haojie Li <lihaojie@kylinos.cn>
Reviewed-by: CK Hu <ck.hu@mediatek.com>
Link: https://patchwork.kernel.org/project/linux-mediatek/patch/20260825100845.438893-1-lihaojie@kylinos.cn/
Signed-off-by: Chun-Kuang Hu <chunkuang.hu@kernel.org>

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Haojie Li 2026-08-25 18:08:45 +08:00 • committed by Chun-Kuang Hu

parent cee9395acd

commit bce7698e2e

1 changed files with 3 additions and 0 deletions

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drivers/gpu/drm/mediatek/mtk_drm_drv.c

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