[empathy] early return if accounts_dialog_model_get_selected_settings() returns NULL

[Guillaume Desmottes <gdesmott src gnome org>]

commit afcd81098a2134d1421844ebf37a9ba90e1193bf
Author: Guillaume Desmottes <guillaume desmottes collabora co uk>
Date:   Mon Mar 12 12:56:32 2012 +0100

    early return if accounts_dialog_model_get_selected_settings() returns NULL
    
    It can happen, typically if no account is currently selected.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=671790

 src/empathy-accounts-dialog.c |    4 ++++
 1 files changed, 4 insertions(+), 0 deletions(-)
---
diff --git a/src/empathy-accounts-dialog.c b/src/empathy-accounts-dialog.c
index a3cb149..189f22b 100644
--- a/src/empathy-accounts-dialog.c
+++ b/src/empathy-accounts-dialog.c
@@ -568,6 +568,8 @@ account_dialog_create_edit_params_dialog (EmpathyAccountsDialog *dialog)
   GtkWidget *subdialog, *content, *content_area, *align;
 
   settings = accounts_dialog_model_get_selected_settings (dialog);
+  if (settings == NULL)
+    return;
 
   subdialog = gtk_dialog_new_with_buttons (_("Edit Connection Parameters"),
       GTK_WINDOW (dialog),
@@ -701,6 +703,8 @@ account_dialow_show_edit_params_dialog (EmpathyAccountsDialog *dialog,
   TpStorageRestrictionFlags storage_restrictions;
 
   settings = accounts_dialog_model_get_selected_settings (dialog);
+  if (settings == NULL)
+    return;
 
   account = empathy_account_settings_get_account (settings);
   g_return_if_fail (account != NULL);