[PATCH] drm/amdgpu: fix warning of drm_mm_clean

[ZhenGuo Yin]

Kernel doorbell BOs needs to be freed before ttm_fini.

Fixes: 54c30d2a8def ("drm/amdgpu: create kernel doorbell pages")
Signed-off-by: ZhenGuo Yin <zhenguo.yin at amd.com>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_device.c | 15 +++++++--------
 1 file changed, 7 insertions(+), 8 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
index d4b01ef00025..b49604ade6c2 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
@@ -4807,6 +4807,13 @@ void amdgpu_device_fini_sw(struct amdgpu_device *adev)
 	int i, idx;
 	bool px;
 
+	if (drm_dev_enter(adev_to_drm(adev), &idx)) {
+		iounmap(adev->rmmio);
+		adev->rmmio = NULL;
+		amdgpu_doorbell_fini(adev);
+		drm_dev_exit(idx);
+	}
+
 	amdgpu_device_ip_fini(adev);
 	amdgpu_fence_driver_sw_fini(adev);
 	amdgpu_ucode_release(&adev->firmware.gpu_info_fw);
@@ -4847,14 +4854,6 @@ void amdgpu_device_fini_sw(struct amdgpu_device *adev)
 	if ((adev->pdev->class >> 8) == PCI_CLASS_DISPLAY_VGA)
 		vga_client_unregister(adev->pdev);
 
-	if (drm_dev_enter(adev_to_drm(adev), &idx)) {
-
-		iounmap(adev->rmmio);
-		adev->rmmio = NULL;
-		amdgpu_doorbell_fini(adev);
-		drm_dev_exit(idx);
-	}
-
 	if (IS_ENABLED(CONFIG_PERF_EVENTS))
 		amdgpu_pmu_fini(adev);
 	if (adev->mman.discovery_bin)
-- 
2.35.1