--- a/examples/tty/tty.c	Wed Dec 09 14:40:35 2009 +0100
+++ b/examples/tty/tty.c	Mon Dec 14 13:11:36 2009 +0100
@@ -459,7 +459,7 @@
         goto out_tty;
     }
 
-    init_MUTEX(&master_sem);
+    sema_init(&master_sem, 1);
     ecrt_master_callbacks(master, send_callback, receive_callback, master);
 
     printk(KERN_INFO PFX "Registering domain...\n");