Commit 5bf1e3bd authored by ruanjinjie's avatar ruanjinjie Committed by Chun-Kuang Hu
Browse files

drm/mediatek: mtk_drm_crtc: Add checks for devm_kcalloc 



As the devm_kcalloc may return NULL, the return value needs to be checked
to avoid NULL poineter dereference.

Fixes: 31c5558d ("drm/mediatek: Refactor plane init")
Signed-off-by: default avatarruanjinjie <ruanjinjie@huawei.com>
Reviewed-by: default avatarAngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Link: https://patchwork.kernel.org/project/linux-mediatek/patch/20221205095115.2905090-1-ruanjinjie@huawei.com/


Signed-off-by: default avatarChun-Kuang Hu <chunkuang.hu@kernel.org>
parent 4deef811

drivers/gpu/drm/mediatek/mtk_drm_crtc.c

+2 −0
Original line number Diff line number Diff line
@@ -945,6 +945,8 @@ int mtk_drm_crtc_create(struct drm_device *drm_dev, 


	mtk_crtc->planes = devm_kcalloc(dev, num_comp_planes,

					sizeof(struct drm_plane), GFP_KERNEL);

	if (!mtk_crtc->planes)

		return -ENOMEM;



	for (i = 0; i < mtk_crtc->ddp_comp_nr; i++) {

		ret = mtk_drm_crtc_init_comp_planes(drm_dev, mtk_crtc, i,