[glib] gvfs: fix possible infinite loop in parse_name_internal()

[Colin Walters <walters src gnome org>]

commit f4b5dc30a76569ce4c7e6990c4827407d52a85ef
Author: Ernestas Kulik <ernestas kulik gmail com>
Date:   Sat Jun 25 14:39:54 2016 +0300

    gvfs: fix possible infinite loop in parse_name_internal()
    
    If none of the closures in the hash table return a non-null value, the
    loop never ends. Since the end of the hash table has been reached at
    that point, g_hash_table_iter_next() starts asserting.
    
    The possible fix is making the return value of g_hash_table_iter_next()
    the condition in the loop.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=768029

 gio/gvfs.c |    7 +++----
 1 files changed, 3 insertions(+), 4 deletions(-)
---
diff --git a/gio/gvfs.c b/gio/gvfs.c
index 6a02d90..eed723b 100644
--- a/gio/gvfs.c
+++ b/gio/gvfs.c
@@ -178,11 +178,10 @@ parse_name_internal (GVfs       *vfs,
   g_rw_lock_reader_lock (&additional_schemes_lock);
   g_hash_table_iter_init (&iter, priv->additional_schemes);
 
-  while (TRUE)
+  while (g_hash_table_iter_next (&iter, NULL, (gpointer *) &closure))
     {
-      if (g_hash_table_iter_next (&iter, NULL, (gpointer *) &closure))
-        ret = closure->parse_name_func (vfs, parse_name,
-                                        closure->parse_name_data);
+      ret = closure->parse_name_func (vfs, parse_name,
+                                      closure->parse_name_data);
 
       if (ret)
         break;