[gnome-calendar] search-view: don't try to access NULL data

[Erick Pérez Castellanos <erickpc src gnome org>]

commit ff54f7eb67872dad8648738efb93dd00abff9301
Author: Georges Basile Stavracas Neto <georges stavracas gmail com>
Date:   Wed Jan 7 15:53:13 2015 -0200

    search-view: don't try to access NULL data
    
    This should be better debugged, as it may be a thread syncronization problem.

 src/gcal-search-view.c |    7 +++++--
 1 files changed, 5 insertions(+), 2 deletions(-)
---
diff --git a/src/gcal-search-view.c b/src/gcal-search-view.c
index 235f419..0e3b11d 100644
--- a/src/gcal-search-view.c
+++ b/src/gcal-search-view.c
@@ -642,8 +642,11 @@ gcal_search_view_component_removed (ECalDataModelSubscriber *subscriber,
 
   row_data = g_hash_table_lookup (priv->events, uuid);
 
-  g_hash_table_remove (priv->row_to_event, row_data->row);
-  g_hash_table_remove (priv->events, uuid);
+  if (row_data)
+    {
+      g_hash_table_remove (priv->row_to_event, row_data->row);
+      g_hash_table_remove (priv->events, uuid);
+    }
   g_free (uuid);
 
   /* show 'no results' */