[at-spi2-atk] Fix another crash when we're initialized/shut down repeatedly

[Mike Gorse <mgorse src gnome org>]

commit c60babbd8746b81ea8a6b9b3702a4a36cdfc27bf
Author: Mike Gorse <mgorse suse com>
Date:   Tue Jul 9 12:45:20 2013 -0500

    Fix another crash when we're initialized/shut down repeatedly

 atk-adaptor/bridge.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/atk-adaptor/bridge.c b/atk-adaptor/bridge.c
index e59c834..5bcd630 100644
--- a/atk-adaptor/bridge.c
+++ b/atk-adaptor/bridge.c
@@ -106,7 +106,7 @@ get_events_reply (DBusPendingCall *pending, void *user_data)
   DBusMessage *reply = dbus_pending_call_steal_reply (pending);
   DBusMessageIter iter, iter_array, iter_struct;
 
-  if (!reply)
+  if (!reply || !spi_global_app_data)
     goto done;
 
   if (strcmp (dbus_message_get_signature (reply), "a(ss)") != 0)