for (i = 0; i < 8; i++) {
                pxmitbuf->pxmit_urb[i] = usb_alloc_urb(0, GFP_KERNEL);
-               if (!pxmitbuf->pxmit_urb[i]) {
-                       DBG_88E("pxmitbuf->pxmit_urb[i]==NULL");
+               if (!pxmitbuf->pxmit_urb[i])
                        return _FAIL;
-               }
        }
        return _SUCCESS;
 }
                        memcpy(newskb->data, psta->hwaddr, 6);
                        res = rtw_xmit(padapter, &newskb);
                        if (res < 0) {
-                               DBG_88E("%s()-%d: rtw_xmit() return error!\n",
-                                       __func__, __LINE__);
                                pxmitpriv->tx_drop++;
                                dev_kfree_skb_any(newskb);
                        } else {
                                pxmitpriv->tx_pkts++;
                        }
                } else {
-                       DBG_88E("%s-%d: skb_copy() failed!\n",
-                               __func__, __LINE__);
                        pxmitpriv->tx_drop++;
 
                        spin_unlock_bh(&pstapriv->asoc_list_lock);