-gint lttv_stats_hook_remove_event_hooks(void *hook_data, void *call_data);
-gboolean lttv_stats_remove_event_hooks(LttvTracesetStats *self);
+gboolean lttv_stats_hook_remove_event_hooks(void *hook_data, void *call_data);
+void lttv_stats_remove_event_hooks(LttvTracesetStats *self);