hso: remove unused workqueue

The workqueue "retry_unthrottle_workqueue" is not scheduled anywhere
in the code. So, remove it.

Signed-off-by: Olivier Sobrie <olivier@sobrie.be>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/usb/hso.c b/drivers/net/usb/hso.c
index a3a05869309df6a1ac34cdb00c6ff4d031dc921b..9ca2b418a3eecff56c8d8f491a37e02083390c6e 100644 (file)
--- a/drivers/net/usb/hso.c
+++ b/drivers/net/usb/hso.c
@@ -261,7 +261,6 @@ struct hso_serial {
        u16  curr_rx_urb_offset;
        u8   rx_urb_filled[MAX_RX_URBS];
        struct tasklet_struct unthrottle_tasklet;
-       struct work_struct    retry_unthrottle_workqueue;
 };
 
 struct hso_device {
@@ -1252,14 +1251,6 @@ static   void hso_unthrottle(struct tty_struct *tty)
        tasklet_hi_schedule(&serial->unthrottle_tasklet);
 }
 
-static void hso_unthrottle_workfunc(struct work_struct *work)
-{
-       struct hso_serial *serial =
-           container_of(work, struct hso_serial,
-                        retry_unthrottle_workqueue);
-       hso_unthrottle_tasklet(serial);
-}
-
 /* open the requested serial port */
 static int hso_serial_open(struct tty_struct *tty, struct file *filp)
 {
@@ -1295,8 +1286,6 @@ static int hso_serial_open(struct tty_struct *tty, struct file *filp)
                tasklet_init(&serial->unthrottle_tasklet,
                             (void (*)(unsigned long))hso_unthrottle_tasklet,
                             (unsigned long)serial);
-               INIT_WORK(&serial->retry_unthrottle_workqueue,
-                         hso_unthrottle_workfunc);
                result = hso_start_serial_device(serial->parent, GFP_KERNEL);
                if (result) {
                        hso_stop_serial_device(serial->parent);
@@ -1345,7 +1334,6 @@ static void hso_serial_close(struct tty_struct *tty, struct file *filp)
                if (!usb_gone)
                        hso_stop_serial_device(serial->parent);
                tasklet_kill(&serial->unthrottle_tasklet);
-               cancel_work_sync(&serial->retry_unthrottle_workqueue);
        }
 
        if (!usb_gone)