This is a note to let you know that I've just added the patch titled drm/mediatek: Drop unbalanced obj unref to the 5.15-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: drm-mediatek-drop-unbalanced-obj-unref.patch and it can be found in the queue-5.15 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. commit 5ce851c9fa6646410e25dddde8231e19b19d55bf Author: Rob Clark <robdclark@xxxxxxxxxxxx> Date: Thu Jan 19 15:12:55 2023 -0800 drm/mediatek: Drop unbalanced obj unref [ 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@xxxxxxxxxxxx> Link: https://patchwork.kernel.org/project/linux-mediatek/patch/20230119231255.2883365-1-robdclark@xxxxxxxxx/ Signed-off-by: Chun-Kuang Hu <chunkuang.hu@xxxxxxxxxx> Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx> diff --git a/drivers/gpu/drm/mediatek/mtk_drm_gem.c b/drivers/gpu/drm/mediatek/mtk_drm_gem.c index fd85e6bfb9545..726a34c4725c4 100644 --- a/drivers/gpu/drm/mediatek/mtk_drm_gem.c +++ b/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; }