diff --git a/[refs] b/[refs]
index 6e93793c6dcc..785b347a9166 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: c9222ec92e6ac60a4624234b61cf848c237e8e0e
+refs/heads/master: da7fbb6dd061fc4e2945d63cf04f843063dd51e5
diff --git a/trunk/drivers/usb/serial/ftdi_sio.c b/trunk/drivers/usb/serial/ftdi_sio.c
index cb0ecd5b2e4b..a865df81a551 100644
--- a/trunk/drivers/usb/serial/ftdi_sio.c
+++ b/trunk/drivers/usb/serial/ftdi_sio.c
@@ -1918,6 +1918,7 @@ static int ftdi_prepare_write_buffer(struct usb_serial_port *port,
 			c = kfifo_out(&port->write_fifo, &buffer[i + 1], len);
 			if (!c)
 				break;
+			priv->icount.tx += c;
 			buffer[i] = (c << 2) + 1;
 			count += c + 1;
 		}
@@ -1925,6 +1926,7 @@ static int ftdi_prepare_write_buffer(struct usb_serial_port *port,
 	} else {
 		count = kfifo_out_locked(&port->write_fifo, dest, size,
 								&port->lock);
+		priv->icount.tx += count;
 	}
 
 	return count;