[rygel-gst-0-10-plugins] Fix a crash.

[Krzesimir Nowak <krnowak src gnome org>]

commit 4ce63eefb4e9376b277f5a41a500a4331b258452
Author: Krzesimir Nowak <krnowak openismus com>
Date:   Wed Feb 6 14:13:11 2013 +0100

    Fix a crash.

 src/media-export/rygel-media-export-media-cache.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/src/media-export/rygel-media-export-media-cache.c b/src/media-export/rygel-media-export-media-cache.c
index 510eaec..3e03bed 100644
--- a/src/media-export/rygel-media-export-media-cache.c
+++ b/src/media-export/rygel-media-export-media-cache.c
@@ -1978,7 +1978,7 @@ rygel_media_export_media_cache_translate_sort_criteria (const gchar *sort_criter
   order_list = g_ptr_array_new_with_free_func (g_free);
   fields = g_strsplit (sort_criteria, ",", 0);
 
-  for (iter = fields; iter; ++iter) {
+  for (iter = fields; *iter; ++iter) {
     const gchar *order;
     gchar *field = *iter;
     gchar *slice = rygel_media_export_string_slice (field, 1, strlen (field));