[PATCH] drm/doc: fix underline for section "DRM Sync Objects"

[Simon Ser]

It doesn't line up.

Signed-off-by: Simon Ser <contact at emersion.fr>
Suggested-by: Jani Nikula <jani.nikula at intel.com>
---
 Documentation/gpu/drm-mm.rst | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Documentation/gpu/drm-mm.rst b/Documentation/gpu/drm-mm.rst
index 513197359aba..c19b34b1c0ed 100644
--- a/Documentation/gpu/drm-mm.rst
+++ b/Documentation/gpu/drm-mm.rst
@@ -520,7 +520,7 @@ DRM Cache Handling and Fast WC memcpy()
 .. _drm_sync_objects:
 
 DRM Sync Objects
-===========================
+================
 
 .. kernel-doc:: drivers/gpu/drm/drm_syncobj.c
    :doc: Overview
-- 
2.41.0