[PATCH] drm/amd/display: remove unused variable 'ret' in dm_suspend()

[Jason Yan]

Fix the following coccicheck warning:

drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c:1574:5-8: Unneeded
variable: "ret". Return "0" on line 1586

Signed-off-by: Jason Yan <yanaijie at huawei.com>
---
 drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
index 9c2a07626d2c..2b7588371170 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
@@ -1571,7 +1571,6 @@ static int dm_suspend(void *handle)
 {
 	struct amdgpu_device *adev = handle;
 	struct amdgpu_display_manager *dm = &adev->dm;
-	int ret = 0;
 
 	WARN_ON(adev->dm.cached_state);
 	adev->dm.cached_state = drm_atomic_helper_suspend(adev->ddev);
@@ -1583,7 +1582,7 @@ static int dm_suspend(void *handle)
 
 	dc_set_power_state(dm->dc, DC_ACPI_CM_POWER_STATE_D3);
 
-	return ret;
+	return 0;
 }
 
 static struct amdgpu_dm_connector *
-- 
2.21.1