diff --git a/drivers/serial/cpm_uart/cpm_uart_core.c b/drivers/serial/cpm_uart/cpm_uart_core.c
--- a/drivers/serial/cpm_uart/cpm_uart_core.c
+++ b/drivers/serial/cpm_uart/cpm_uart_core.c
@@ -1045,6 +1045,7 @@ static int __init cpm_uart_console_setup
 	port =
 	    (struct uart_port *)&cpm_uart_ports[cpm_uart_port_map[co->index]];
 	pinfo = (struct uart_cpm_port *)port;
+	spin_lock_init(&port->lock);
 	
 	pinfo->flags |= FLAG_CONSOLE;