1 files changed, 1 insertions, 3 deletions

diff --git a/drivers/serial/sa1100.c b/drivers/serial/sa1100.c
index fd9deee20e05..0e3daf6d7b50 100644
--- a/drivers/serial/sa1100.c
+++ b/drivers/serial/sa1100.c
@@ -156,7 +156,7 @@ static void sa1100_stop_tx(struct uart_port *port)
 }
 
 /*
- * interrupts may not be disabled on entry
+ * port locked and interrupts disabled
  */
 static void sa1100_start_tx(struct uart_port *port)
 {
@@ -164,11 +164,9 @@ static void sa1100_start_tx(struct uart_port *port)
         unsigned long flags;
         u32 utcr3;
 
-        spin_lock_irqsave(&sport->port.lock, flags);
         utcr3 = UART_GET_UTCR3(sport);
         sport->port.read_status_mask |= UTSR0_TO_SM(UTSR0_TFS);
         UART_PUT_UTCR3(sport, utcr3 | UTCR3_TIE);
-        spin_unlock_irqrestore(&sport->port.lock, flags);
 }
 
 /*