Prevent passing null to g_hash_table_unref

This commit removes annoying message from glib2:

"GLib-CRITICAL g_hash_table_unref: assertion 'hash_table != NULL'
failed"

Change-Id: Idf9eaaebc03f0b0fe8c6275c625d902e3361343a

diff --git a/atspi/atspi-accessible.c b/atspi/atspi-accessible.c
index 2cc4cb4..c743d1e 100644 (file)
--- a/atspi/atspi-accessible.c
+++ b/atspi/atspi-accessible.c
@@ -1227,7 +1227,9 @@ atspi_accessible_get_attributes (AtspiAccessible *obj, GError **error)
   {
     message = _atspi_dbus_call_partial (obj, atspi_interface_accessible,
                                         "GetAttributes", error, "");
-    g_hash_table_unref(obj->attributes);
+    if (obj->attributes)
+        g_hash_table_unref(obj->attributes);
+
     obj->attributes = _atspi_dbus_return_hash_from_message (message);
     _atspi_accessible_add_cache (obj, ATSPI_CACHE_ATTRIBUTES);
   }