[PATCH] OProfile update

We were doing del_timer_sync() on shutdown, but not ensuring that any queued work
was done as well.

drivers/oprofile/buffer_sync.c

@@ -147,6 +147,8 @@ void sync_stop(void)
 	profile_event_unregister(EXIT_MMAP, &exit_mmap_nb);
 	profile_event_unregister(EXEC_UNMAP, &exec_unmap_nb);
 	del_timer_sync(&sync_timer);
+	/* timer might have queued work, make sure it's completed. */
+	flush_scheduled_work();
 }