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

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@huawei.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

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 8e46524..6c314db 100644 (file)
--- 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 *