* -------------------------------------------------------------------
  */
 
-static void mcfrs_offintr(void *private)
+static void mcfrs_offintr(struct work_struct *work)
 {
-       struct mcf_serial       *info = (struct mcf_serial *) private;
-       struct tty_struct       *tty;
+       struct mcf_serial *info = container_of(work, struct mcf_serial, tqueue);
+       struct tty_struct *tty = info->tty;
        
-       tty = info->tty;
-       if (!tty)
-               return;
-       tty_wakeup(tty);
+       if (tty)
+               tty_wakeup(tty);
 }
 
 
  *     do_serial_hangup() -> tty->hangup() -> mcfrs_hangup()
  * 
  */
-static void do_serial_hangup(void *private)
+static void do_serial_hangup(struct work_struct *work)
 {
-       struct mcf_serial       *info = (struct mcf_serial *) private;
-       struct tty_struct       *tty;
+       struct mcf_serial *info = container_of(work, struct mcf_serial, tqueue_hangup);
+       struct tty_struct *tty = info->tty;
        
-       tty = info->tty;
-       if (!tty)
-               return;
-
-       tty_hangup(tty);
+       if (tty)
+               tty_hangup(tty);
 }
 
 static int startup(struct mcf_serial * info)
 #ifdef SERIAL_DEBUG_THROTTLE
        char    buf[64];
        
-       printk("throttle %s: %d....\n", _tty_name(tty, buf),
+       printk("throttle %s: %d....\n", tty_name(tty, buf),
               tty->ldisc.chars_in_buffer(tty));
 #endif
 
 #ifdef SERIAL_DEBUG_THROTTLE
        char    buf[64];
        
-       printk("unthrottle %s: %d....\n", _tty_name(tty, buf),
+       printk("unthrottle %s: %d....\n", tty_name(tty, buf),
               tty->ldisc.chars_in_buffer(tty));
 #endif
 
                info->event = 0;
                info->count = 0;
                info->blocked_open = 0;
-               INIT_WORK(&info->tqueue, mcfrs_offintr, info);
-               INIT_WORK(&info->tqueue_hangup, do_serial_hangup, info);
+               INIT_WORK(&info->tqueue, mcfrs_offintr);
+               INIT_WORK(&info->tqueue_hangup, do_serial_hangup);
                init_waitqueue_head(&info->open_wait);
                init_waitqueue_head(&info->close_wait);