[PATCH] drm/amd/display: Fix wrong return value in dm_update_plane_state()

[Tianjia Zhang]

On an error exit path, a negative error code should be returned
instead of a positive return value.

Fixes: 9e869063b0021 ("drm/amd/display: Move iteration out of dm_update_planes")
Cc: Leo Li <sunpeng...@amd.com>
Signed-off-by: Tianjia Zhang <tianjia.zh...@linux.alibaba.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 710edc70e37e..5810416e2ddc 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
@@ -8182,8 +8182,7 @@ static int dm_update_plane_state(struct dc *dc,
                                dm_old_plane_state->dc_state,
                                dm_state->context)) {
 
-                       ret = EINVAL;
-                       return ret;
+                       return -EINVAL;
                }
 
 
-- 
2.26.2