[tracker] tracker-writeback: Handle if there's no module for the passed rdf types

[Philip Van Hoof <pvanhoof src gnome org>]

commit 159f9732e19837af9bb98c4fb802617d6a2f4a4a
Author: Philip Van Hoof <philip codeminded be>
Date:   Tue Sep 20 13:02:50 2011 +0200

    tracker-writeback: Handle if there's no module for the passed rdf types

 src/tracker-writeback/tracker-writeback.c |    9 +++++++++
 1 files changed, 9 insertions(+), 0 deletions(-)
---
diff --git a/src/tracker-writeback/tracker-writeback.c b/src/tracker-writeback/tracker-writeback.c
index 5433ef4..b64593f 100644
--- a/src/tracker-writeback/tracker-writeback.c
+++ b/src/tracker-writeback/tracker-writeback.c
@@ -504,6 +504,7 @@ handle_method_call_perform_writeback (TrackerController     *controller,
 	GArray *rdf_types_array;
 	GStrv rdf_types;
 	gchar *rdf_type = NULL;
+	gboolean handled = FALSE;
 
 	priv = controller->priv;
 
@@ -553,6 +554,7 @@ handle_method_call_perform_writeback (TrackerController     *controller,
 			           subject,
 			           module->name);
 
+			handled = TRUE;
 			writeback = tracker_writeback_module_create (module);
 			data = writeback_data_new (controller,
 			                           writeback,
@@ -569,6 +571,13 @@ handle_method_call_perform_writeback (TrackerController     *controller,
 		}
 	}
 
+	if (!handled) {
+		g_dbus_method_invocation_return_error (invocation,
+		                                       G_IO_ERROR,
+		                                       G_IO_ERROR_FAILED,
+		                                       "No module for rdf types");
+	}
+
 	g_free (rdf_types);
 }