[glib/glib-2-22] Avoid a warning

[Matthias Clasen <matthiasc src gnome org>]

commit d8fc1528b74cd79f59b9c630c5f6b170e0b65818
Author: Matthias Clasen <mclasen redhat com>
Date:   Sun Oct 25 02:50:12 2009 -0400

    Avoid a warning

 gio/gfile.c |   11 +++++++----
 1 files changed, 7 insertions(+), 4 deletions(-)
---
diff --git a/gio/gfile.c b/gio/gfile.c
index 54a41c0..c4a72e3 100644
--- a/gio/gfile.c
+++ b/gio/gfile.c
@@ -5956,11 +5956,14 @@ g_file_query_default_handler (GFile                  *file,
   char *path;
   
   uri_scheme = g_file_get_uri_scheme (file);
-  appinfo = g_app_info_get_default_for_uri_scheme (uri_scheme);
-  g_free (uri_scheme);
+  if (uri_scheme)
+    {
+      appinfo = g_app_info_get_default_for_uri_scheme (uri_scheme);
+      g_free (uri_scheme);
 
-  if (appinfo != NULL)
-    return appinfo;
+      if (appinfo != NULL)
+        return appinfo;
+    }
 
   info = g_file_query_info (file,
 			    G_FILE_ATTRIBUTE_STANDARD_CONTENT_TYPE,