[ Upstream commit5bf1e3bd7d
] As the devm_kcalloc may return NULL, the return value needs to be checked to avoid NULL poineter dereference. Fixes:31c5558dae
("drm/mediatek: Refactor plane init") Signed-off-by: ruanjinjie <ruanjinjie@huawei.com> Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com> Link: https://patchwork.kernel.org/project/linux-mediatek/patch/20221205095115.2905090-1-ruanjinjie@huawei.com/ Signed-off-by: Chun-Kuang Hu <chunkuang.hu@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>