unsigned long this_time = jiffies;
 
        pr_debug("%s: <-\n", __func__);
-       if (down_interruptible(&wl->scan_lock))
+       if (mutex_lock_interruptible(&wl->scan_lock))
                return -EAGAIN;
 
        switch (wl->scan_stat) {
        wrqu->data.length = ev - extra;
        wrqu->data.flags = 0;
 out:
-       up(&wl->scan_lock);
+       mutex_unlock(&wl->scan_lock);
        pr_debug("%s: -> %d %d\n", __func__, ret, wrqu->data.length);
        return ret;
 }
        int ret = 0;
 
        pr_debug("%s: <- always=%d\n", __func__, always_scan);
-       if (down_interruptible(&wl->scan_lock))
+       if (mutex_lock_interruptible(&wl->scan_lock))
                return -ERESTARTSYS;
 
        /*
        }
        kfree(cmd);
 out:
-       up(&wl->scan_lock);
+       mutex_unlock(&wl->scan_lock);
        pr_debug("%s: ->\n", __func__);
        return ret;
 }
        DECLARE_MAC_BUF(mac);
 
        pr_debug("%s:start\n", __func__);
-       down(&wl->scan_lock);
+       mutex_lock(&wl->scan_lock);
 
        if (wl->scan_stat != GELIC_WL_SCAN_STAT_SCANNING) {
                /*
                            NULL);
 out:
        complete(&wl->scan_done);
-       up(&wl->scan_lock);
+       mutex_unlock(&wl->scan_lock);
        pr_debug("%s:end\n", __func__);
 }
 
        wait_for_completion(&wl->scan_done);
 
        pr_debug("%s: scan done\n", __func__);
-       down(&wl->scan_lock);
+       mutex_lock(&wl->scan_lock);
        if (wl->scan_stat != GELIC_WL_SCAN_STAT_GOT_LIST) {
                gelic_wl_send_iwap_event(wl, NULL);
                pr_info("%s: no scan list. association failed\n", __func__);
        if (ret)
                pr_info("%s: association failed %d\n", __func__, ret);
 scan_lock_out:
-       up(&wl->scan_lock);
+       mutex_unlock(&wl->scan_lock);
 out:
        up(&wl->assoc_stat_lock);
 }
 
        INIT_DELAYED_WORK(&wl->event_work, gelic_wl_event_worker);
        INIT_DELAYED_WORK(&wl->assoc_work, gelic_wl_assoc_worker);
-       init_MUTEX(&wl->scan_lock);
+       mutex_init(&wl->scan_lock);
        init_MUTEX(&wl->assoc_stat_lock);
 
        init_completion(&wl->scan_done);