diff --git a/[refs] b/[refs]
index 6c32ca689bcd..1042d41726c2 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: a5c44e29e5637b5e6fe59d225eb4f438688b3849
+refs/heads/master: 96050b11f690878c19c1cd39970ab7325d91e18b
diff --git a/trunk/drivers/usb/serial/pl2303.c b/trunk/drivers/usb/serial/pl2303.c
index cf2213bae0e0..fb3b6b7b9065 100644
--- a/trunk/drivers/usb/serial/pl2303.c
+++ b/trunk/drivers/usb/serial/pl2303.c
@@ -826,6 +826,7 @@ static void pl2303_update_line_status(struct usb_serial_port *port,
 	spin_lock_irqsave(&priv->lock, flags);
 	priv->line_status = data[status_idx];
 	spin_unlock_irqrestore(&priv->lock, flags);
+	wake_up_interruptible (&priv->delta_msr_wait);
 
 exit:
 	return;