__u8                    tp_uart_mode;   /* 232 or 485 modes */
        unsigned int            tp_uart_base_addr;
        int                     tp_flags;
-       wait_queue_head_t       tp_write_wait;
        struct ti_device        *tp_tdev;
        struct usb_serial_port  *tp_port;
        spinlock_t              tp_lock;
        else
                tport->tp_uart_base_addr = TI_UART2_BASE_ADDR;
        port->port.closing_wait = msecs_to_jiffies(10 * closing_wait);
-       init_waitqueue_head(&tport->tp_write_wait);
        tport->tp_port = port;
        tport->tp_tdev = usb_get_serial_data(port->serial);
        tport->tp_uart_mode = 0;        /* default is RS232 */
        case -ESHUTDOWN:
                dev_dbg(dev, "%s - urb shutting down, %d\n", __func__, status);
                tport->tp_tdev->td_urb_error = 1;
-               wake_up_interruptible(&tport->tp_write_wait);
                return;
        default:
                dev_err(dev, "%s - nonzero urb status, %d\n",
                        __func__, status);
                tport->tp_tdev->td_urb_error = 1;
-               wake_up_interruptible(&tport->tp_write_wait);
        }
 
        if (status == -EPIPE)
        case -ESHUTDOWN:
                dev_dbg(&port->dev, "%s - urb shutting down, %d\n", __func__, status);
                tport->tp_tdev->td_urb_error = 1;
-               wake_up_interruptible(&tport->tp_write_wait);
                return;
        default:
                dev_err_console(port, "%s - nonzero urb status, %d\n",
                        __func__, status);
                tport->tp_tdev->td_urb_error = 1;
-               wake_up_interruptible(&tport->tp_write_wait);
        }
 
        /* send any buffered data */
        /* more room in the buffer for new writes, wakeup */
        tty_port_tty_wakeup(&port->port);
 
-       wake_up_interruptible(&tport->tp_write_wait);
        return;
 unlock:
        spin_unlock_irqrestore(&tport->tp_lock, flags);