_rtw_init_stainfo(psta);
        memcpy(psta->hwaddr, hwaddr, ETH_ALEN);
        index = wifi_mac_hash(hwaddr);
-       RT_TRACE(_module_rtl871x_sta_mgt_c_, _drv_info_,
-                ("%s: index=%x", __func__, index));
-       if (index >= NUM_STA) {
-               RT_TRACE(_module_rtl871x_sta_mgt_c_, _drv_err_,
-                        ("ERROR => %s: index >= NUM_STA", __func__));
+       if (index >= NUM_STA)
                return NULL;
-       }
        phash_list = &pstapriv->sta_hash[index];
 
        spin_lock_bh(&pstapriv->sta_hash_lock);
                memcpy(&psta->sta_recvpriv.rxcache.tid_rxseq[i],
                       &wRxSeqInitialValue, 2);
 
-       RT_TRACE(_module_rtl871x_sta_mgt_c_, _drv_info_,
-                ("alloc number_%d stainfo  with hwaddr = %pM\n",
-                 pstapriv->asoc_sta_count, hwaddr));
-
        init_addba_retry_timer(pstapriv->padapter, psta);
 
        /* for A-MPDU Rx reordering buffer control */
        spin_unlock_bh(&pxmitpriv->lock);
 
        list_del_init(&psta->hash_list);
-       RT_TRACE(_module_rtl871x_sta_mgt_c_, _drv_err_,
-                ("\n free number_%d stainfo with hwaddr=0x%.2x 0x%.2x 0x%.2x 0x%.2x 0x%.2x 0x%.2x\n",
-                pstapriv->asoc_sta_count, psta->hwaddr[0], psta->hwaddr[1],
-                psta->hwaddr[2], psta->hwaddr[3], psta->hwaddr[4],
-                psta->hwaddr[5]));
        pstapriv->asoc_sta_count--;
 
        /*  re-init sta_info; 20061114 */
 
        psta = rtw_alloc_stainfo(pstapriv, bc_addr);
 
-       if (!psta) {
-               RT_TRACE(_module_rtl871x_sta_mgt_c_, _drv_err_,
-                        ("rtw_alloc_stainfo fail"));
+       if (!psta)
                return _FAIL;
-       }
 
        /*  default broadcast & multicast use macid 1 */
        psta->mac_id = 1;