diff --git a/[refs] b/[refs]
index 72b44360b8c4..2d0e50b70306 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 1798ca13bfae8cc7c0ef82c034c3c4951ecaeb88
+refs/heads/master: cb01ece3ea5dec16ac7bab30069c7736b59f7dea
diff --git a/trunk/drivers/tty/serial/8250.c b/trunk/drivers/tty/serial/8250.c
index b40f7b90c81d..b4129f53fb1b 100644
--- a/trunk/drivers/tty/serial/8250.c
+++ b/trunk/drivers/tty/serial/8250.c
@@ -3318,6 +3318,7 @@ void serial8250_unregister_port(int line)
 		uart->port.flags &= ~UPF_BOOT_AUTOCONF;
 		uart->port.type = PORT_UNKNOWN;
 		uart->port.dev = &serial8250_isa_devs->dev;
+		uart->capabilities = uart_config[uart->port.type].flags;
 		uart_add_one_port(&serial8250_reg, &uart->port);
 	} else {
 		uart->port.dev = NULL;