diff -ur linux-2.6.9-rc3.orig/drivers/s390/char/sclp_tty.c linux-2.6.9-rc3/drivers/s390/char/sclp_tty.c
--- linux-2.6.9-rc3.orig/drivers/s390/char/sclp_tty.c	2004-10-03 20:37:30.000000000 +0000
+++ linux-2.6.9-rc3/drivers/s390/char/sclp_tty.c	2004-10-03 18:16:39.000000000 +0000
@@ -277,7 +277,7 @@
 	wake_up(&sclp_tty_waitq);
 	/* check if the tty needs a wake up call */
 	if (sclp_tty != NULL) {
-		tty_wakeup(tty);
+		tty_wakeup(sclp_tty);
 	}
 }
 
diff -ur linux-2.6.9-rc3.orig/drivers/s390/char/sclp_vt220.c linux-2.6.9-rc3/drivers/s390/char/sclp_vt220.c
--- linux-2.6.9-rc3.orig/drivers/s390/char/sclp_vt220.c	2004-10-03 20:37:30.000000000 +0000
+++ linux-2.6.9-rc3/drivers/s390/char/sclp_vt220.c	2004-10-03 18:17:52.000000000 +0000
@@ -139,7 +139,7 @@
 	wake_up(&sclp_vt220_waitq);
 	/* Check if the tty needs a wake up call */
 	if (sclp_vt220_tty != NULL) {
-		tty_wakeup(tty);
+		tty_wakeup(sclp_vt220_tty);
 	}
 }