USB: iuu_phoenix: 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, 2 deletions

diff --git a/drivers/usb/serial/iuu_phoenix.c b/drivers/usb/serial/iuu_phoenix.c
index 8eeefe3af0b6..1ccf9e4e82c2 100644
--- a/drivers/usb/serial/iuu_phoenix.c
+++ b/drivers/usb/serial/iuu_phoenix.c
@@ -55,7 +55,6 @@ static void read_rxcmd_callback(struct urb *urb);
 
 struct iuu_private {
         spinlock_t lock;        /* store irq state */
-        wait_queue_head_t delta_msr_wait;
         u8 line_status;
         int tiostatus;          /* store IUART SIGNAL for tiocmget call */
         u8 reset;               /* if 1 reset is needed */
@@ -94,7 +93,6 @@ static int iuu_port_probe(struct usb_serial_port *port)
 
         priv->vcc = vcc_default;
         spin_lock_init(&priv->lock);
-        init_waitqueue_head(&priv->delta_msr_wait);
 
         usb_set_serial_port_data(port, priv);