[mutter] xprops: Free counter_list_from_results() return value with g_free()

[Jonas Ådahl <jadahl src gnome org>]

commit 488991b0f6f6cca3cfc780407d99855477d7ae1b
Author: Hans de Goede <hdegoede redhat com>
Date:   Mon Sep 9 16:23:04 2019 +0200

    xprops: Free counter_list_from_results() return value with g_free()
    
    counter_list_from_results directly passes through the results->prop
    pointer which is g_malloc memory, so we should free the buffer it
    returns with g_free.
    
    https://gitlab.gnome.org/GNOME/mutter/merge_requests/786

 src/x11/xprops.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/src/x11/xprops.c b/src/x11/xprops.c
index 9e66fd5ad..3632877da 100644
--- a/src/x11/xprops.c
+++ b/src/x11/xprops.c
@@ -1109,7 +1109,7 @@ free_value (MetaPropValue *value)
     case META_PROP_VALUE_SYNC_COUNTER:
       break;
     case META_PROP_VALUE_SYNC_COUNTER_LIST:
-      free (value->v.xcounter_list.counters);
+      g_free (value->v.xcounter_list.counters);
       break;
     }
 }