[PATCH 5.4 22/51] drm/ttm: fix memleak in ttm_transfered_destroy

[Greg Kroah-Hartman]

From: Christian König <christian.koenig@xxxxxxx>

commit 0db55f9a1bafbe3dac750ea669de9134922389b5 upstream.

We need to cleanup the fences for ghost objects as well.

Signed-off-by: Christian König <christian.koenig@xxxxxxx>
Reported-by: Erhard F. <erhard_f@xxxxxxxxxxx>
Tested-by: Erhard F. <erhard_f@xxxxxxxxxxx>
Reviewed-by: Huang Rui <ray.huang@xxxxxxx>
Bug: https://bugzilla.kernel.org/show_bug.cgi?id=214029
Bug: https://bugzilla.kernel.org/show_bug.cgi?id=214447
CC: <stable@xxxxxxxxxxxxxxx>
Link: https://patchwork.freedesktop.org/patch/msgid/20211020173211.2247-1-christian.koenig@xxxxxxx
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
 drivers/gpu/drm/ttm/ttm_bo_util.c |    1 +
 1 file changed, 1 insertion(+)

--- a/drivers/gpu/drm/ttm/ttm_bo_util.c
+++ b/drivers/gpu/drm/ttm/ttm_bo_util.c
@@ -463,6 +463,7 @@ static void ttm_transfered_destroy(struc
 	struct ttm_transfer_obj *fbo;
 
 	fbo = container_of(bo, struct ttm_transfer_obj, base);
+	dma_resv_fini(&fbo->base.base._resv);
 	ttm_bo_put(fbo->bo);
 	kfree(fbo);
 }