--- linux-2.6.15/drivers/serial/ip3106_uart.c	2005-12-02 16:37:59.000000000 +0300
+++ linux-2.6.15/drivers/serial/ip3106_uart.c	2005-12-06 20:40:15.000000000 +0300
@@ -149,19 +149,14 @@ static void ip3106_stop_tx(struct uart_p
 static void ip3106_start_tx(struct uart_port *port, unsigned int tty_start)
 {
 	struct ip3106_port *sport = (struct ip3106_port *)port;
-	unsigned long flags;
 	u32 ien;
 
-	spin_lock_irqsave(&sport->port.lock, flags);
-
 	/* Clear all pending TX intr */
 	serial_out(sport, IP3106_ICLR, IP3106_UART_INT_ALLTX);
 
 	/* Enable TX intr */
 	ien = serial_in(sport, IP3106_IEN);
 	serial_out(sport, IP3106_IEN, ien | IP3106_UART_INT_ALLTX);
-
-	spin_unlock_irqrestore(&sport->port.lock, flags);
 }
 
 /*