diff options
| author | ruanjinjie <ruanjinjie@huawei.com> | 2022-12-05 12:51:15 +0300 |
|---|---|---|
| committer | Chun-Kuang Hu <chunkuang.hu@kernel.org> | 2023-01-27 17:51:11 +0300 |
| commit | 5bf1e3bd7da625ccf9a22c8cb7d65271e6e47f4c (patch) | |
| tree | dad22f718bf4e4113fe6a2a8f88ad1321272da01 /drivers/gpu/drm/mediatek | |
| parent | 4deef811828e87e26a978d5d6433b261d4713849 (diff) | |
| download | linux-5bf1e3bd7da625ccf9a22c8cb7d65271e6e47f4c.tar.xz | |
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: 31c5558dae05 ("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>
Diffstat (limited to 'drivers/gpu/drm/mediatek')
| -rw-r--r-- | drivers/gpu/drm/mediatek/mtk_drm_crtc.c | 2 |
1 files changed, 2 insertions, 0 deletions
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, |