426 	if (adev->wb.wb_obj) {  in amdgpu_wb_fini()
427 		if (!amdgpu_bo_reserve(adev->wb.wb_obj, false)) {  in amdgpu_wb_fini()
428 			amdgpu_bo_kunmap(adev->wb.wb_obj);  in amdgpu_wb_fini()
429 			amdgpu_bo_unpin(adev->wb.wb_obj);  in amdgpu_wb_fini()
430 			amdgpu_bo_unreserve(adev->wb.wb_obj);  in amdgpu_wb_fini()
432 		amdgpu_bo_unref(&adev->wb.wb_obj);  in amdgpu_wb_fini()
434 		adev->wb.wb_obj = NULL;  in amdgpu_wb_fini()
451 	if (adev->wb.wb_obj == NULL) {  in amdgpu_wb_init()
454 				     &adev->wb.wb_obj);  in amdgpu_wb_init()
459 		r = amdgpu_bo_reserve(adev->wb.wb_obj, false);  in amdgpu_wb_init()
464 		r = amdgpu_bo_pin(adev->wb.wb_obj, AMDGPU_GEM_DOMAIN_GTT,  in amdgpu_wb_init()
467 			amdgpu_bo_unreserve(adev->wb.wb_obj);  in amdgpu_wb_init()
472 		r = amdgpu_bo_kmap(adev->wb.wb_obj, (void **)&adev->wb.wb);  in amdgpu_wb_init()
473 		amdgpu_bo_unreserve(adev->wb.wb_obj);  in amdgpu_wb_init()