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path: root/drivers/usb/serial/ftdi_sio.c
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Diffstat (limited to 'drivers/usb/serial/ftdi_sio.c')
-rw-r--r--drivers/usb/serial/ftdi_sio.c19
1 files changed, 11 insertions, 8 deletions
diff --git a/drivers/usb/serial/ftdi_sio.c b/drivers/usb/serial/ftdi_sio.c
index c186b4e73c7..88ed5c1d236 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) {
@@ -1641,17 +1643,18 @@ 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;
@@ -2180,7 +2183,7 @@ 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)