[vinagre] Return the function if we did not receive a valid object.

[Jonh Wendell <jwendell src gnome org>]

commit 9ca4052e06fdbed550da2b5093bf424a49588749
Author: Jonh Wendell <jwendell gnome org>
Date:   Tue Oct 27 16:27:26 2009 -0300

    Return the function if we did not receive a valid object.

 vinagre/vinagre-connect.c |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)
---
diff --git a/vinagre/vinagre-connect.c b/vinagre/vinagre-connect.c
index de99972..6e13c6f 100644
--- a/vinagre/vinagre-connect.c
+++ b/vinagre/vinagre-connect.c
@@ -379,6 +379,8 @@ VinagreConnection *vinagre_connect (VinagreWindow *window)
   VinagreConnectDialog  dialog;
 
   dialog.xml = vinagre_utils_get_builder (NULL, NULL);
+  if (!dialog.xml)
+    return NULL;
 
   dialog.dialog = GTK_WIDGET (gtk_builder_get_object (dialog.xml, "connect_dialog"));
   gtk_window_set_transient_for (GTK_WINDOW (dialog.dialog), GTK_WINDOW (window));