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[PATCH 4.18 189/197] drm/amdgpu: Dont warn on destroying a pinned BO




4.18-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Michel Dänzer <michel.daenzer@xxxxxxx>

commit 456607d816d89a442a3d5ec98b02c8bc950b5228 upstream.

The warning turned out to be not so useful, as BO destruction tends to
be deferred to a workqueue.

Also, we should be preventing any damage from this now, so not really
important anymore to fix code doing this.

Acked-by: Alex Deucher <alexander.deucher@xxxxxxx>
Tested-by: Mike Lothian <mike@xxxxxxxxxxxxxx>
Signed-off-by: Michel Dänzer <michel.daenzer@xxxxxxx>
Signed-off-by: Alex Deucher <alexander.deucher@xxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>

---
 drivers/gpu/drm/amd/amdgpu/amdgpu_object.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c
@@ -76,7 +76,7 @@ static void amdgpu_ttm_bo_destroy(struct
 	struct amdgpu_device *adev = amdgpu_ttm_adev(tbo->bdev);
 	struct amdgpu_bo *bo = ttm_to_amdgpu_bo(tbo);
 
-	if (WARN_ON_ONCE(bo->pin_count > 0))
+	if (bo->pin_count > 0)
 		amdgpu_bo_subtract_pin_size(bo);
 
 	if (bo->kfd_bo)