From 82398945eac9e329e61d5d3005aea901b55778fb Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Michel=20D=C3=A4nzer?= <mdaenzer@redhat.com>
Date: Thu, 9 Jan 2025 18:59:04 +0100
Subject: [PATCH] wayland/buffer: Do not get latest sync_fd if there are no
 release points

It's pointless busy work in that case.

Fixes: e8b890ab53a6 ("wayland: Implement linux-drm-syncobj-v1")
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/4208>
---
 src/wayland/meta-wayland-buffer.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/wayland/meta-wayland-buffer.c b/src/wayland/meta-wayland-buffer.c
index f4834b521..76eb57942 100644
--- a/src/wayland/meta-wayland-buffer.c
+++ b/src/wayland/meta-wayland-buffer.c
@@ -731,6 +731,9 @@ meta_wayland_buffer_dec_use_count (MetaWaylandBuffer *buffer)
       if (buffer->resource)
         wl_buffer_send_release (buffer->resource);
 
+      if (!buffer->release_points->len)
+        return;
+
       sync_fd = cogl_context_get_latest_sync_fd (cogl_context);
       if (sync_fd < 0)
         {