diff --exclude=linux/fs/ext3/ -ur linux-2.5.24-clean/drivers/char/tty_io.c linux/drivers/char/tty_io.c
--- linux-2.5.24-clean/drivers/char/tty_io.c	Thu Jun 20 15:53:54 2002
+++ linux/drivers/char/tty_io.c	Fri Jun 28 20:23:52 2002
@@ -437,7 +437,7 @@
 		return;
 
 	/* inuse_filps is protected by the single kernel lock */
-	lock_kernel();
+	er_lock_kernel();
 	
 	check_tty_count(tty, "do_tty_hangup");
 	file_list_lock();