[at-spi2-core] Fix crash when unregistering device listeners

[Mike Gorse <mgorse src gnome org>]

commit eacef0c3ca4f051dabe8a6949407c0c01a58d13c
Author: Mike Gorse <mgorse novell com>
Date:   Mon Sep 5 13:25:36 2011 -0500

    Fix crash when unregistering device listeners

 registryd/deviceeventcontroller.c |    3 +++
 1 files changed, 3 insertions(+), 0 deletions(-)
---
diff --git a/registryd/deviceeventcontroller.c b/registryd/deviceeventcontroller.c
index ecaa872..07e5630 100644
--- a/registryd/deviceeventcontroller.c
+++ b/registryd/deviceeventcontroller.c
@@ -2098,6 +2098,7 @@ spi_remove_device_listeners (SpiDEController *controller, const char *bus_name)
     if (!strcmp (listener->bus_name, bus_name))
     {
       spi_controller_deregister_device_listener (controller, listener);
+      tmp = controller->mouse_listeners;
     }
   }
   for (l = controller->key_listeners; l; l = tmp)
@@ -2106,7 +2107,9 @@ spi_remove_device_listeners (SpiDEController *controller, const char *bus_name)
     tmp = l->next;
     if (!strcmp (key_listener->listener.bus_name, bus_name))
     {
+      /* TODO: untangle the below line(s) */
       spi_deregister_controller_key_listener (controller, key_listener);
+      tmp = controller->key_listeners;
     }
   }
 }