1 files changed, 22 insertions, 16 deletions

diff --git a/drivers/usb/serial/aircable.c b/drivers/usb/serial/aircable.c
index db6f97a93c0..537f953bd7f 100644
--- a/drivers/usb/serial/aircable.c
+++ b/drivers/usb/serial/aircable.c
@@ -220,8 +220,8 @@ static void aircable_send(struct usb_serial_port *port)
 
 	buf = kzalloc(count + HCI_HEADER_LENGTH, GFP_ATOMIC);
 	if (!buf) {
-		err("%s- kzalloc(%d) failed.", __func__,
-		    count + HCI_HEADER_LENGTH);
+		dev_err(&port->dev, "%s- kzalloc(%d) failed.\n",
+			__func__, count + HCI_HEADER_LENGTH);
 		return;
 	}
 
@@ -272,23 +272,24 @@ static void aircable_read(struct work_struct *work)
 	 * 64 bytes, to ensure I do not get throttled.
 	 * Ask USB mailing list for better aproach.
 	 */
-	tty = port->tty;
+	tty = tty_port_tty_get(&port->port);
 
 	if (!tty) {
 		schedule_work(&priv->rx_work);
-		err("%s - No tty available", __func__);
+		dev_err(&port->dev, "%s - No tty available\n", __func__);
 		return ;
 	}
 
 	count = min(64, serial_buf_data_avail(priv->rx_buf));
 
 	if (count <= 0)
-		return; /* We have finished sending everything. */
+		goto out; /* We have finished sending everything. */
 
 	tty_prepare_flip_string(tty, &data, count);
 	if (!data) {
-		err("%s- kzalloc(%d) failed.", __func__, count);
-		return;
+		dev_err(&port->dev, "%s- kzalloc(%d) failed.",
+							__func__, count);
+		goto out;
 	}
 
 	serial_buf_get(priv->rx_buf, data, count);
@@ -297,7 +298,8 @@ static void aircable_read(struct work_struct *work)
 
 	if (serial_buf_data_avail(priv->rx_buf))
 		schedule_work(&priv->rx_work);
-
+out:		
+	tty_kref_put(tty);
 	return;
 }
 /* End of private methods */
@@ -334,7 +336,7 @@ static int aircable_attach(struct usb_serial *serial)
 
 	priv = kzalloc(sizeof(struct aircable_private), GFP_KERNEL);
 	if (!priv) {
-		err("%s- kmalloc(%Zd) failed.", __func__,
+		dev_err(&port->dev, "%s- kmalloc(%Zd) failed.\n", __func__,
 			sizeof(struct aircable_private));
 		return -ENOMEM;
 	}
@@ -378,13 +380,14 @@ static void aircable_shutdown(struct usb_serial *serial)
 	}
 }
 
-static int aircable_write_room(struct usb_serial_port *port)
+static int aircable_write_room(struct tty_struct *tty)
 {
+	struct usb_serial_port *port = tty->driver_data;
 	struct aircable_private *priv = usb_get_serial_port_data(port);
 	return serial_buf_data_avail(priv->tx_buf);
 }
 
-static int aircable_write(struct usb_serial_port *port,
+static int aircable_write(struct tty_struct *tty, struct usb_serial_port *port,
 			  const unsigned char *source, int count)
 {
 	struct aircable_private *priv = usb_get_serial_port_data(port);
@@ -466,7 +469,7 @@ static void aircable_read_bulk_callback(struct urb *urb)
 
 	if (status) {
 		dbg("%s - urb status = %d", __func__, status);
-		if (!port->open_count) {
+		if (!port->port.count) {
 			dbg("%s - port is closed, exiting.", __func__);
 			return;
 		}
@@ -494,7 +497,7 @@ static void aircable_read_bulk_callback(struct urb *urb)
 	usb_serial_debug_data(debug, &port->dev, __func__,
 				urb->actual_length, urb->transfer_buffer);
 
-	tty = port->tty;
+	tty = tty_port_tty_get(&port->port);
 	if (tty && urb->actual_length) {
 		if (urb->actual_length <= 2) {
 			/* This is an incomplete package */
@@ -526,9 +529,10 @@ static void aircable_read_bulk_callback(struct urb *urb)
 		}
 		aircable_read(&priv->rx_work);
 	}
+	tty_kref_put(tty);
 
 	/* Schedule the next read _if_ we are still open */
-	if (port->open_count) {
+	if (port->port.count) {
 		usb_fill_bulk_urb(port->read_urb, port->serial->dev,
 				  usb_rcvbulkpipe(port->serial->dev,
 					  port->bulk_in_endpointAddress),
@@ -547,8 +551,9 @@ static void aircable_read_bulk_callback(struct urb *urb)
 }
 
 /* Based on ftdi_sio.c throttle */
-static void aircable_throttle(struct usb_serial_port *port)
+static void aircable_throttle(struct tty_struct *tty)
 {
+	struct usb_serial_port *port = tty->driver_data;
 	struct aircable_private *priv = usb_get_serial_port_data(port);
 	unsigned long flags;
 
@@ -560,8 +565,9 @@ static void aircable_throttle(struct usb_serial_port *port)
 }
 
 /* Based on ftdi_sio.c unthrottle */
-static void aircable_unthrottle(struct usb_serial_port *port)
+static void aircable_unthrottle(struct tty_struct *tty)
 {
+	struct usb_serial_port *port = tty->driver_data;
 	struct aircable_private *priv = usb_get_serial_port_data(port);
 	int actually_throttled;
 	unsigned long flags;