Messages in this thread Patch in this message | | | From | ruanjinjie <> | Subject | [PATCH] drm/mediatek: mtk_drm_crtc: Add checks for devm_kcalloc | Date | Mon, 5 Dec 2022 17:51:15 +0800 |
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As the devm_kcalloc may return NULL, the return value needs to be checked to avoid NULL poineter dereference.
Fixes: 31c5558dae05 ("drm/mediatek: Refactor plane init") Signed-off-by: ruanjinjie <ruanjinjie@huawei.com> --- drivers/gpu/drm/mediatek/mtk_drm_crtc.c | 2 ++ 1 file changed, 2 insertions(+)
diff --git a/drivers/gpu/drm/mediatek/mtk_drm_crtc.c b/drivers/gpu/drm/mediatek/mtk_drm_crtc.c index 112615817dcb..5071f1263216 100644 --- a/drivers/gpu/drm/mediatek/mtk_drm_crtc.c +++ b/drivers/gpu/drm/mediatek/mtk_drm_crtc.c @@ -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, -- 2.25.1
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