This is a note to let you know that I've just added the patch titled
drm/rockchip: Drop unbalanced obj unref
to the 5.4-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-rockchip-drop-unbalanced-obj-unref.patch
and it can be found in the queue-5.4 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit 8a31f8aa4c23ad254dcdeb227f8e70356ad806f9
Author: Rob Clark <robdclark@xxxxxxxxxxxx>
Date: Thu Jan 19 15:17:34 2023 -0800
drm/rockchip: Drop unbalanced obj unref
[ Upstream commit 8ee3b0e85f6ccd9e6c527bc50eaba774c3bb18d0 ]
In the error path, rockchip_drm_gem_object_mmap() is dropping an obj
reference that it doesn't own.
Fixes: 41315b793e13 ("drm/rockchip: use drm_gem_mmap helpers")
Signed-off-by: Rob Clark <robdclark@xxxxxxxxxxxx>
Signed-off-by: Heiko Stuebner <heiko@xxxxxxxxx>
Link: https://patchwork.freedesktop.org/patch/msgid/20230119231734.2884543-1-robdclark@xxxxxxxxx
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_gem.c b/drivers/gpu/drm/rockchip/rockchip_drm_gem.c
index 291e89b4045f3..96cc794147b5f 100644
--- a/drivers/gpu/drm/rockchip/rockchip_drm_gem.c
+++ b/drivers/gpu/drm/rockchip/rockchip_drm_gem.c
@@ -249,9 +249,6 @@ static int rockchip_drm_gem_object_mmap(struct drm_gem_object *obj,
else
ret = rockchip_drm_gem_object_mmap_dma(obj, vma);
- if (ret)
- drm_gem_vm_close(vma);
-
return ret;
}
