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drm/mediatek: Drop unbalanced obj unref

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[ Upstream commit 4deef811828e87e26a978d5d6433b261d4713849 ]

In the error path, mtk_drm_gem_object_mmap() is dropping an obj
reference that it doesn't own.

Fixes: 119f5173628a ("drm/mediatek: Add DRM Driver for Mediatek SoC MT8173.")
Signed-off-by: Rob Clark <robdclark@chromium.org>
Link: https://patchwork.kernel.org/project/linux-mediatek/patch/20230119231255.2883365-1-robdclark@gmail.com/
Signed-off-by: Chun-Kuang Hu <chunkuang.hu@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Rob Clark 2023-01-19 15:12:55 -08:00 committed by Greg Kroah-Hartman
parent 088a31fe1e
commit cd98ea8fa1
1 changed files with 0 additions and 2 deletions

2
drivers/gpu/drm/mediatek/mtk_drm_gem.c

@ -164,8 +164,6 @@ static int mtk_drm_gem_object_mmap(struct drm_gem_object *obj,
ret = dma_mmap_attrs(priv->dma_dev, vma, mtk_gem->cookie,
mtk_gem->dma_addr, obj->size, mtk_gem->dma_attrs);
if (ret)
drm_gem_vm_close(vma);
return ret;
}