USB: mct_u232: switch to generic get_icount implementation

Switch to the generic get_icount implementation.

Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/usb/serial/mct_u232.c b/drivers/usb/serial/mct_u232.c
index 06d5a60be2c4cb87279744372edef4a41864b74b..6f4303cef0d8e44c9e4eb022bef0caa6673f15c1 100644 (file)
--- a/drivers/usb/serial/mct_u232.c
+++ b/drivers/usb/serial/mct_u232.c
@@ -59,8 +59,6 @@ static int  mct_u232_tiocmset(struct tty_struct *tty,
                        unsigned int set, unsigned int clear);
 static int  mct_u232_ioctl(struct tty_struct *tty,
                        unsigned int cmd, unsigned long arg);
-static int  mct_u232_get_icount(struct tty_struct *tty,
-                       struct serial_icounter_struct *icount);
 static void mct_u232_throttle(struct tty_struct *tty);
 static void mct_u232_unthrottle(struct tty_struct *tty);
 
@@ -99,7 +97,7 @@ static struct usb_serial_driver mct_u232_device = {
        .port_probe =        mct_u232_port_probe,
        .port_remove =       mct_u232_port_remove,
        .ioctl =             mct_u232_ioctl,
-       .get_icount =        mct_u232_get_icount,
+       .get_icount =        usb_serial_generic_get_icount,
 };
 
 static struct usb_serial_driver * const serial_drivers[] = {
@@ -113,7 +111,6 @@ struct mct_u232_private {
        unsigned char        last_lsr;      /* Line Status Register */
        unsigned char        last_msr;      /* Modem Status Register */
        unsigned int         rx_flags;      /* Throttling flags */
-       struct async_icount  icount;
 };
 
 #define THROTTLED              0x01
@@ -570,7 +567,7 @@ static void mct_u232_read_int_callback(struct urb *urb)
        /* Record Control Line states */
        mct_u232_msr_to_state(port, &priv->control_state, priv->last_msr);
 
-       mct_u232_msr_to_icount(&priv->icount, priv->last_msr);
+       mct_u232_msr_to_icount(&port->icount, priv->last_msr);
 
 #if 0
        /* Not yet handled. See belkin_sa.c for further information */
@@ -804,7 +801,7 @@ static int  mct_u232_ioctl(struct tty_struct *tty,
                dev_dbg(&port->dev, "%s TIOCMIWAIT", __func__);
 
                spin_lock_irqsave(&mct_u232_port->lock, flags);
-               cprev = mct_u232_port->icount;
+               cprev = port->icount;
                spin_unlock_irqrestore(&mct_u232_port->lock, flags);
                for ( ; ; ) {
                        prepare_to_wait(&port->delta_msr_wait,
@@ -819,7 +816,7 @@ static int  mct_u232_ioctl(struct tty_struct *tty,
                                return -EIO;
 
                        spin_lock_irqsave(&mct_u232_port->lock, flags);
-                       cnow = mct_u232_port->icount;
+                       cnow = port->icount;
                        spin_unlock_irqrestore(&mct_u232_port->lock, flags);
                        if (cnow.rng == cprev.rng && cnow.dsr == cprev.dsr &&
                            cnow.dcd == cprev.dcd && cnow.cts == cprev.cts)
@@ -837,35 +834,6 @@ static int  mct_u232_ioctl(struct tty_struct *tty,
        return -ENOIOCTLCMD;
 }
 
-static int  mct_u232_get_icount(struct tty_struct *tty,
-                       struct serial_icounter_struct *icount)
-{
-       struct usb_serial_port *port = tty->driver_data;
-       struct mct_u232_private *mct_u232_port = usb_get_serial_port_data(port);
-       struct async_icount *ic = &mct_u232_port->icount;
-       unsigned long flags;
-
-       spin_lock_irqsave(&mct_u232_port->lock, flags);
-
-       icount->cts = ic->cts;
-       icount->dsr = ic->dsr;
-       icount->rng = ic->rng;
-       icount->dcd = ic->dcd;
-       icount->rx = ic->rx;
-       icount->tx = ic->tx;
-       icount->frame = ic->frame;
-       icount->overrun = ic->overrun;
-       icount->parity = ic->parity;
-       icount->brk = ic->brk;
-       icount->buf_overrun = ic->buf_overrun;
-
-       spin_unlock_irqrestore(&mct_u232_port->lock, flags);
-
-       dev_dbg(&port->dev, "%s TIOCGICOUNT RX=%d, TX=%d\n",
-               __func__,  icount->rx, icount->tx);
-       return 0;
-}
-
 module_usb_serial_driver(serial_drivers, id_table);
 
 MODULE_AUTHOR(DRIVER_AUTHOR);