drm/amdgpu/pm: Remove gpu_od if it's an empty directory

gpu_od should be removed if it's an empty directory

Signed-off-by: Ma Jun <Jun.Ma2@amd.com>
Reported-by: Yang Wang <kevinyang.wang@amd.com>
Reviewed-by: Yang Wang <kevinyang.wang@amd.com>
Suggested-by: Lijo Lazar <lijo.lazar@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org

diff --git a/drivers/gpu/drm/amd/pm/amdgpu_pm.c b/drivers/gpu/drm/amd/pm/amdgpu_pm.c
index f09b9d49297e815f469cc54be1c1130711576a12..bbd0169010c2d50a2454e64f53342a9304ac6e89 100644 (file)
--- a/drivers/gpu/drm/amd/pm/amdgpu_pm.c
+++ b/drivers/gpu/drm/amd/pm/amdgpu_pm.c
@@ -4261,6 +4261,13 @@ static int amdgpu_od_set_init(struct amdgpu_device *adev)
                }
        }
 
+       /*
+        * If gpu_od is the only member in the list, that means gpu_od is an
+        * empty directory, so remove it.
+        */
+       if (list_is_singular(&adev->pm.od_kobj_list))
+               goto err_out;
+
        return 0;
 
 err_out: