[PATCH 05/10] drm/amdgpu:fix memleak in takedown

[Monk Liu]

this can fix the memory leak under the case that not all
BO are freed during "takedown" stage, because originally
it blocks following kfree on mgr.

Change-Id: I56e832ac317215a4d9f58edb8e75ea722158715c
Signed-off-by: Monk Liu <Monk.Liu at amd.com>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_gtt_mgr.c  | 6 ------
 drivers/gpu/drm/amd/amdgpu/amdgpu_vram_mgr.c | 5 -----
 2 files changed, 11 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_gtt_mgr.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_gtt_mgr.c
index 88709f9..72819cc 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_gtt_mgr.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_gtt_mgr.c
@@ -76,12 +76,6 @@ static int amdgpu_gtt_mgr_fini(struct ttm_mem_type_manager *man)
 {
 	struct amdgpu_gtt_mgr *mgr = man->priv;
 
-	spin_lock(&mgr->lock);
-	if (!drm_mm_clean(&mgr->mm)) {
-		spin_unlock(&mgr->lock);
-		return -EBUSY;
-	}
-
 	drm_mm_takedown(&mgr->mm);
 	spin_unlock(&mgr->lock);
 	kfree(mgr);
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vram_mgr.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_vram_mgr.c
index 4ca622b..3e883e5 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vram_mgr.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vram_mgr.c
@@ -68,11 +68,6 @@ static int amdgpu_vram_mgr_fini(struct ttm_mem_type_manager *man)
 	struct amdgpu_vram_mgr *mgr = man->priv;
 
 	spin_lock(&mgr->lock);
-	if (!drm_mm_clean(&mgr->mm)) {
-		spin_unlock(&mgr->lock);
-		return -EBUSY;
-	}
-
 	drm_mm_takedown(&mgr->mm);
 	spin_unlock(&mgr->lock);
 	kfree(mgr);
-- 
2.7.4