[empathy] empathy_protocol_chooser_create_account_settings: ensure that cm is always unrefed

[Guillaume Desmottes <gdesmott src gnome org>]

commit 84b316b42725de82000353a9650e9304f5d4f825
Author: Guillaume Desmottes <guillaume desmottes collabora co uk>
Date:   Thu Feb 17 11:59:21 2011 +0100

    empathy_protocol_chooser_create_account_settings: ensure that cm is always unrefed

 libempathy-gtk/empathy-protocol-chooser.c |    9 +++++----
 1 files changed, 5 insertions(+), 4 deletions(-)
---
diff --git a/libempathy-gtk/empathy-protocol-chooser.c b/libempathy-gtk/empathy-protocol-chooser.c
index 689f6a2..6e6b8bb 100644
--- a/libempathy-gtk/empathy-protocol-chooser.c
+++ b/libempathy-gtk/empathy-protocol-chooser.c
@@ -561,16 +561,16 @@ empathy_protocol_chooser_set_visible (EmpathyProtocolChooser *protocol_chooser,
 EmpathyAccountSettings *
 empathy_protocol_chooser_create_account_settings (EmpathyProtocolChooser *self)
 {
-  EmpathyAccountSettings *settings;
+  EmpathyAccountSettings *settings = NULL;
   gchar *str;
   const gchar *display_name;
   TpConnectionManager *cm;
   TpConnectionManagerProtocol *proto;
-  gchar *service;
+  gchar *service = NULL;
 
   cm = empathy_protocol_chooser_dup_selected (self, &proto, &service);
   if (cm == NULL || proto == NULL)
-    return NULL;
+    goto out;
 
   if (service != NULL)
     display_name = empathy_service_name_to_display_name (service);
@@ -609,7 +609,8 @@ empathy_protocol_chooser_create_account_settings (EmpathyProtocolChooser *self)
           "chat.facebook.com");
     }
 
-  g_object_unref (cm);
+out:
+  tp_clear_object (&cm);
   g_free (service);
   return settings;
 }