From: Rob Clark <robdclark@chromium.org>
Date: Thu, 19 Jan 2023 15:12:55 -0800
Subject: [PATCH] drm/mediatek: Drop unbalanced obj unref
References: bsc#1012628
Patch-mainline: 6.2.3
Git-commit: 4deef811828e87e26a978d5d6433b261d4713849
[ 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>
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
---
drivers/gpu/drm/mediatek/mtk_drm_gem.c | 2 --
1 file changed, 2 deletions(-)
diff --git a/drivers/gpu/drm/mediatek/mtk_drm_gem.c b/drivers/gpu/drm/mediatek/mtk_drm_gem.c
index 06aadd5e..6c204ccf 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;
}
--
2.35.3