[empathy] can_add_contact_to_account: early return if connection is NULL (#587817)

[Guillaume Desmottes <gdesmott src gnome org>]

commit d19d09875e8cf3d77bc464c07d2bb70354b9ae50
Author: Guillaume Desmottes <guillaume desmottes collabora co uk>
Date:   Tue Jul 7 14:01:31 2009 +0100

    can_add_contact_to_account: early return if connection is NULL (#587817)

 libempathy-gtk/empathy-contact-dialogs.c |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)
---
diff --git a/libempathy-gtk/empathy-contact-dialogs.c b/libempathy-gtk/empathy-contact-dialogs.c
index c1cca3e..ef100a3 100644
--- a/libempathy-gtk/empathy-contact-dialogs.c
+++ b/libempathy-gtk/empathy-contact-dialogs.c
@@ -336,6 +336,8 @@ can_add_contact_to_account (EmpathyAccount *account,
 	gboolean               result;
 
 	connection = empathy_account_get_connection (account);
+	if (connection == NULL)
+		return FALSE;
 
 	contact_manager = empathy_contact_manager_dup_singleton ();
 	result = empathy_contact_manager_can_add (contact_manager, connection);