diff -Nur linux-3.15-rc5.orig/drivers/tty/serial/serial_core.c linux-3.15-rc5/drivers/tty/serial/serial_core.c
--- linux-3.15-rc5.orig/drivers/tty/serial/serial_core.c	2014-05-09 22:10:52.000000000 +0200
+++ linux-3.15-rc5/drivers/tty/serial/serial_core.c	2014-05-16 10:33:53.000000000 +0200
@@ -2685,12 +2685,6 @@
 	}
 
 	/*
-	 * If the port is used as a console, unregister it
-	 */
-	if (uart_console(uport))
-		unregister_console(uport->cons);
-
-	/*
 	 * Free the port IO and memory resources, if any.
 	 */
 	if (uport->type != PORT_UNKNOWN)