Fix non-void function should return a value.

diff --git a/src/bingmapsource.c b/src/bingmapsource.c
index a11cd6b750ea12119215bf4afe8f2f284cea86ed..5a797d911cbc0d25d65a5613e4c24def51194ba7 100644 (file)
--- a/src/bingmapsource.c
+++ b/src/bingmapsource.c
@@ -439,6 +439,7 @@ _emit_update ( gpointer data )
        vik_layers_panel_emit_update ( VIK_LAYERS_PANEL (data) );
        */
        gdk_threads_leave();
+       return 0;
 }
 
 static int