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

[Wang, Yang(Kevin)]

Reviewed-by: Yang Wang <kevinyang.wang at amd.com>

Best Regards,
Kevin

-----Original Message-----
From: Ma, Jun <Jun.Ma2 at amd.com> 
Sent: 2024年4月17日 13:54
To: amd-gfx at lists.freedesktop.org
Cc: Feng, Kenneth <Kenneth.Feng at amd.com>; Deucher, Alexander <Alexander.Deucher at amd.com>; Wang, Yang(Kevin) <KevinYang.Wang at amd.com>; Lazar, Lijo <Lijo.Lazar at amd.com>; Ma, Jun <Jun.Ma2 at amd.com>
Subject: [PATCH] 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 at amd.com>
Reported-by: Yang Wang <kevinyang.wang at amd.com>
---
 drivers/gpu/drm/amd/pm/amdgpu_pm.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/drivers/gpu/drm/amd/pm/amdgpu_pm.c b/drivers/gpu/drm/amd/pm/amdgpu_pm.c
index a20e03e69d38..0c13e5520e77 100644
--- a/drivers/gpu/drm/amd/pm/amdgpu_pm.c
+++ b/drivers/gpu/drm/amd/pm/amdgpu_pm.c
@@ -4338,6 +4338,13 @@ static int amdgpu_od_set_init(struct amdgpu_device *adev)
 		}
 	}
 
+	/*
+	 * If gpu_od is the first member in the list, that means gpu_od is an
+	 * empty directory, so remove it.
+	 */
+	if (list_is_first(&top_set->entry, &adev->pm.od_kobj_list))
+		goto err_out;
+
 	return 0;
 
 err_out:
-- 
2.34.1