From cc311dc8e68698a25c05d6020a13a8af44e14799 Mon Sep 17 00:00:00 2001
From: Carlos Garnacho <carlosg@gnome.org>
Date: Mon, 6 Nov 2017 20:35:13 +0100
Subject: [PATCH] compositor: Keep reference to the screen on the
 MetaBackground

This is not a leak per se, but it seems too easy to make valgrind
SIGSEGV due to MetaBackground disconnecting signals from an already
destroyed MetaScreen when trying to SIGTERM gnome-shell. Keeping a
reference fixes this.

https://bugzilla.gnome.org/show_bug.cgi?id=789984
---
 src/compositor/meta-background.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/compositor/meta-background.c b/src/compositor/meta-background.c
index 00d18f1fd..61dd12095 100644
--- a/src/compositor/meta-background.c
+++ b/src/compositor/meta-background.c
@@ -163,7 +163,7 @@ set_screen (MetaBackground *self,
                                             self);
     }
 
-  priv->screen = screen;
+  g_set_object (&priv->screen, screen);
 
   if (priv->screen != NULL)
     {