fix bug not release link count for ip, make xx-net can't create link anymore
fix bug not release link count for ip, make xx-net can't create link anymore

qqzwc/XX-Net,xyuanmu/XX-Net,xyuanmu/XX-Net,xyuanmu/XX-Net,Suwmlee/XX-Net,xyuanmu/XX-Net,wangyou/XX-Net,jt6562/XX-Net,zlsun/XX-Net,wangyou/XX-Net,qqzwc/XX-Net,Suwmlee/XX-Net,wangyou/XX-Net,wangyou/XX-Net,mikedchavez1010/XX-Net,mikedchavez1010/XX-Net,wangyou/XX-Net,jt6562/XX-Net,wangyou/XX-Net,zlsun/XX-Net,xyuanmu/XX-Net,jt6562/XX-Net,qqzwc/XX-Net,qqzwc/XX-Net,Suwmlee/XX-Net,Suwmlee/XX-Net,jt6562/XX-Net,qqzwc/XX-Net,zlsun/XX-Net,zlsun/XX-Net,Suwmlee/XX-Net,zlsun/XX-Net,jt6562/XX-Net,mikedchavez1010/XX-Net,wangyou/XX-Net,Suwmlee/XX-Net,mikedchavez1010/XX-Net,mikedchavez1010/XX-Net