[PATCH] serial: Add spin_lock_init() in 8250 early_serial_setup() to init port.lock

[George G. Davis]

Need spin_lock_init(&serial8250_ports[port->line].port.lock) in
early_serial_setup() since we're copying struct uart_port *port
into serial8250_ports[port->line].port and *port.lock is typically
unitiliased by the caller.

Signed-off-by: George G. Davis <gdavis@xxxxxxxxxx>

Index: linux-2.6/drivers/serial/8250.c
===================================================================
--- linux-2.6.orig/drivers/serial/8250.c
+++ linux-2.6/drivers/serial/8250.c
@@ -2340,6 +2340,7 @@ int __init early_serial_setup(struct uar
 	serial8250_isa_init_ports();
 	serial8250_ports[port->line].port	= *port;
 	serial8250_ports[port->line].port.ops	= &serial8250_pops;
+	spin_lock_init(&serial8250_ports[port->line].port.lock);
 	return 0;
 }
 
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