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>

1 files changed, 0 insertions, 3 deletions

diff --git a/drivers/usb/serial/digi_acceleport.c b/drivers/usb/serial/digi_acceleport.c
index 76a8c202a8e2..32873b406402 100644
--- 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);