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

Ma Jun · alexdeucher · commit 0e95ed6452cb · 2024-04-23T23:22:46.000-04:00
gpu_od should be removed if it's an empty directory

Signed-off-by: Ma Jun &lt;Jun.Ma2@amd.com&gt;
Reported-by: Yang Wang &lt;kevinyang.wang@amd.com&gt;
Reviewed-by: Yang Wang &lt;kevinyang.wang@amd.com&gt;
Suggested-by: Lijo Lazar &lt;lijo.lazar@amd.com&gt;
Signed-off-by: Alex Deucher &lt;alexander.deucher@amd.com&gt;
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
@@ -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:

Original file line number	Diff line number	Diff line change
`@@ -4261,6 +4261,13 @@ static int amdgpu_od_set_init(struct amdgpu_device *adev)`
`4261`	`4261`	`}`
`4262`	`4262`	`}`
`4263`	`4263`
	`4264`	`+ /*`
	`4265`	`+ * If gpu_od is the only member in the list, that means gpu_od is an`
	`4266`	`+ * empty directory, so remove it.`
	`4267`	`+ */`
	`4268`	`+ if (list_is_singular(&adev->pm.od_kobj_list))`
	`4269`	`+ goto err_out;`
	`4270`	`+`
`4264`	`4271`	`return 0;`
`4265`	`4272`
`4266`	`4273`	`err_out:`