diff --git a/drivers/usb/serial/mct_u232.c b/drivers/usb/serial/mct_u232.c
index 07710cf..82930a7 100644
--- a/drivers/usb/serial/mct_u232.c
+++ b/drivers/usb/serial/mct_u232.c
@@ -721,10 +721,10 @@
 
 	spin_lock_irqsave(&priv->lock, flags);
 	lcr = priv->last_lcr;
-	spin_unlock_irqrestore(&priv->lock, flags);
 
 	if (break_state)
 		lcr |= MCT_U232_SET_BREAK;
+	spin_unlock_irqrestore(&priv->lock, flags);
 
 	mct_u232_set_line_ctrl(serial, lcr);
 } /* mct_u232_break_ctl */