drm/amdgpu:fix memleak in takedown

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.

Signed-off-by: Monk Liu <Monk.Liu@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_gtt_mgr.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_gtt_mgr.c
index 33535d3477343bab044dba5c1cb171ed6befa475..00e0ce10862f7275655710c2559b2286dacb136b 100644 (file)
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_gtt_mgr.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_gtt_mgr.c
@@ -71,12 +71,6 @@ 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 26e90062797173d772b4c71c2f3229ebb1bfbbbc..4acca92f6a52da27b460cfb28bef9a05c571acfa 100644 (file)
--- 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);