1 files changed, 11 insertions, 8 deletions

diff --git a/drivers/usb/serial/ftdi_sio.c b/drivers/usb/serial/ftdi_sio.c
index 89ce2775be15..72e4d48f51e9 100644
--- a/drivers/usb/serial/ftdi_sio.c
+++ b/drivers/usb/serial/ftdi_sio.c
@@ -559,7 +559,8 @@ struct ftdi_private {
         char prev_status, diff_status;        /* Used for TIOCMIWAIT */
         __u8 rx_flags;          /* receive state flags (throttling) */
         spinlock_t rx_lock;     /* spinlock for receive state */
-        struct work_struct rx_work;
+        struct delayed_work rx_work;
+        struct usb_serial_port *port;
         int rx_processed;
         unsigned long rx_bytes;
 
@@ -593,7 +594,7 @@ static int  ftdi_write_room		(struct usb_serial_port *port);
 static int  ftdi_chars_in_buffer        (struct usb_serial_port *port);
 static void ftdi_write_bulk_callback    (struct urb *urb);
 static void ftdi_read_bulk_callback     (struct urb *urb);
-static void ftdi_process_read           (void *param);
+static void ftdi_process_read           (struct work_struct *work);
 static void ftdi_set_termios            (struct usb_serial_port *port, struct termios * old);
 static int  ftdi_tiocmget               (struct usb_serial_port *port, struct file *file);
 static int  ftdi_tiocmset               (struct usb_serial_port *port, struct file * file, unsigned int set, unsigned int clear);
@@ -1201,7 +1202,8 @@ static int ftdi_sio_attach (struct usb_serial *serial)
                 port->read_urb->transfer_buffer_length = BUFSZ;
         }
 
-        INIT_WORK(&priv->rx_work, ftdi_process_read, port);
+        INIT_DELAYED_WORK(&priv->rx_work, ftdi_process_read);
+        priv->port = port;
 
         /* Free port's existing write urb and transfer buffer. */
         if (port->write_urb) {
@@ -1640,17 +1642,18 @@ static void ftdi_read_bulk_callback (struct urb *urb)
         priv->rx_bytes += countread;
         spin_unlock_irqrestore(&priv->rx_lock, flags);
 
-        ftdi_process_read(port);
+        ftdi_process_read(&priv->rx_work.work);
 
 } /* ftdi_read_bulk_callback */
 
 
-static void ftdi_process_read (void *param)
+static void ftdi_process_read (struct work_struct *work)
 { /* ftdi_process_read */
-        struct usb_serial_port *port = (struct usb_serial_port*)param;
+        struct ftdi_private *priv =
+                container_of(work, struct ftdi_private, rx_work.work);
+        struct usb_serial_port *port = priv->port;
         struct urb *urb;
         struct tty_struct *tty;
-        struct ftdi_private *priv;
         char error_flag;
         unsigned char *data;
 
@@ -2179,7 +2182,7 @@ static void ftdi_unthrottle (struct usb_serial_port *port)
         spin_unlock_irqrestore(&priv->rx_lock, flags);
 
         if (actually_throttled)
-                schedule_work(&priv->rx_work);
+                schedule_delayed_work(&priv->rx_work, 0);
 }
 
 static int __init ftdi_init (void)