[at-spi2-atk] Don't iterate over the list twice when removing events

[Mike Gorse <mgorse src gnome org>]

commit 3cdd2ef552996044c51109415384ee043e2f2c57
Author: Mike Gorse <mgorse suse com>
Date:   Mon Aug 20 14:29:22 2012 -0500

    Don't iterate over the list twice when removing events
    
    https://bugzilla.gnome.org/show_bug.cgi?id=679295

 atk-adaptor/bridge.c |   13 +++++++++++--
 1 files changed, 11 insertions(+), 2 deletions(-)
---
diff --git a/atk-adaptor/bridge.c b/atk-adaptor/bridge.c
index 08dfbd4..96fdbf9 100644
--- a/atk-adaptor/bridge.c
+++ b/atk-adaptor/bridge.c
@@ -575,11 +575,20 @@ remove_events (const char *bus_name, const char *event)
           spi_event_is_subtype (evdata->data, remove_data))
         {
           GList *events = spi_global_app_data->events;
-          list = list->next;
           g_strfreev (evdata->data);
           g_free (evdata->bus_name);
           g_free (evdata);
-          spi_global_app_data->events = g_list_remove (events, evdata);
+          if (list->prev)
+            {
+              GList *next = list->next;
+              list->prev = g_list_remove (list->prev, evdata);
+              list = next;
+            }
+          else
+            {
+              spi_global_app_data->events = g_list_remove (events, evdata);
+              list = spi_global_app_data->events;
+            }
         }
       else
         {