[at-spi2-core: 1/2] misc: call queue cleanup function

[Mike Gorse <mgorse src gnome org>]

commit 522c712aa8ae7f3c2ac576ef9b9ec130d31048ae
Author: Victor Toso <victortoso gnome org>
Date:   Sun Aug 21 14:18:53 2022 +0200

    misc: call queue cleanup function
    
    This function was introduced in !53 with 7fdbb0f9 but was not called.
    I've updated the function to avoid possible complains if the pointer
    is NULL.
    
    Fixes warning:
      ../atspi/atspi-misc.c:785:1: warning: ‘cleanup_deferred_message’ defined but not used 
[-Wunused-function]
      785 | cleanup_deferred_message(void)
          | ^~~~~~~~~~~~~~~~~~~~~~~~

 atspi/atspi-misc.c | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)
---
diff --git a/atspi/atspi-misc.c b/atspi/atspi-misc.c
index 18abfceb..cc7e54dd 100644
--- a/atspi/atspi-misc.c
+++ b/atspi/atspi-misc.c
@@ -170,6 +170,8 @@ end:
       dbus_connection_unref (bus);
       bus = NULL;
     }
+
+    cleanup_deferred_message ();
 }
 
 static gboolean atspi_inited = FALSE;
@@ -784,8 +786,11 @@ destroy_deferred_message_item(gpointer ptr)
 static void
 cleanup_deferred_message(void)
 {
-  g_queue_free_full (deferred_messages, destroy_deferred_message_item);
-  deferred_messages = NULL;
+  if (deferred_messages)
+  {
+    g_queue_free_full (deferred_messages, destroy_deferred_message_item);
+    deferred_messages = NULL;
+  }
 }
 
 static gboolean