[S390] Load disabled wait psw if reipl fails.

Normally this should not happen, but it's cleaner to do it that way.
Signed-off-by: NMichael Holzheu <holzheu@de.ibm.com>
Signed-off-by: NMartin Schwidefsky <schwidefsky@de.ibm.com>

arch/s390/kernel/ipl.c

@@ -704,6 +704,7 @@ void reipl_run(struct shutdown_trigger *trigger)
 	default:
 		break;
 	}
+	disabled_wait((unsigned long) __builtin_return_address(0));
 }
 
 static void __init reipl_probe(void)