diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
index 12a3b8bc58a4..eaa86e32912e 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
@@ -2259,8 +2259,6 @@ int amdgpu_ttm_init(struct amdgpu_device *adev)
  */
 void amdgpu_ttm_fini(struct amdgpu_device *adev)
 {
-	int idx;
-
 	if (!adev->mman.initialized)
 		return;
 
@@ -2283,13 +2281,9 @@ void amdgpu_ttm_fini(struct amdgpu_device *adev)
 	amdgpu_ttm_unmark_vram_reserved(adev, AMDGPU_RESV_FW_VRAM_USAGE);
 	amdgpu_ttm_unmark_vram_reserved(adev, AMDGPU_RESV_DRV_VRAM_USAGE);
 
-	if (drm_dev_enter(adev_to_drm(adev), &idx)) {
-
-		if (adev->mman.aper_base_kaddr)
-			iounmap(adev->mman.aper_base_kaddr);
+	if (adev->mman.aper_base_kaddr) {
+		iounmap(adev->mman.aper_base_kaddr);
 		adev->mman.aper_base_kaddr = NULL;
-
-		drm_dev_exit(idx);
 	}
 
 	if (!adev->gmc.is_app_apu)