USB: digi_acceleport: remove unused MSR-wait queue

Remove unused, private modem-status wait queue from driver. If
TIOCMIWAIT is ever implemented it must not rely on a private wait queue
which may have been released when woken up.

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

diff --git a/drivers/usb/serial/digi_acceleport.c b/drivers/usb/serial/digi_acceleport.c
index 76a8c20..32873b4 100644 (file)
--- a/drivers/usb/serial/digi_acceleport.c
+++ b/drivers/usb/serial/digi_acceleport.c
@@ -196,7 +196,6 @@ struct digi_port {
        unsigned char dp_out_buf[DIGI_OUT_BUF_SIZE];
        int dp_write_urb_in_use;
        unsigned int dp_modem_signals;
-       wait_queue_head_t dp_modem_change_wait;
        int dp_transmit_idle;
        wait_queue_head_t dp_transmit_idle_wait;
        int dp_throttled;
@@ -1250,7 +1249,6 @@ static int digi_port_init(struct usb_serial_port *port, unsigned port_num)
 
        spin_lock_init(&priv->dp_port_lock);
        priv->dp_port_num = port_num;
-       init_waitqueue_head(&priv->dp_modem_change_wait);
        init_waitqueue_head(&priv->dp_transmit_idle_wait);
        init_waitqueue_head(&priv->dp_flush_wait);
        init_waitqueue_head(&priv->dp_close_wait);
@@ -1541,7 +1539,6 @@ static int digi_read_oob_callback(struct urb *urb)
                        else
                                priv->dp_modem_signals &= ~TIOCM_CD;
 
-                       wake_up_interruptible(&priv->dp_modem_change_wait);
                        spin_unlock(&priv->dp_port_lock);
                } else if (opcode == DIGI_CMD_TRANSMIT_IDLE) {
                        spin_lock(&priv->dp_port_lock);