rem: LOG(L_ERR, "db_init(): Invalid parameter value\n");
add: LOG(L_ERR, "db_init: Invalid parameter value\n");
context: db_con_t* db_init(const char* _url){	db_con_t* res;	if (!_url) {		LOG(L_ERR, "db_init(): Invalid parameter value\n");		return 0;	}	res = pkg_malloc(sizeof(db_con_t) + sizeof(struct my_con*));	if (!res) {		LOG(L_ERR, "db_init(): No memory left\n");		return 0;	}	memset(res, 0, sizeof(db_con_t) + sizeof(struct my_con*));	res->tail = (unsigned long)get_connection(_url);	if (!res->tail) {		LOG(L_ERR, "db_init(): Could not create a connection\n");		pkg_free(res);		return 0;	}	return res;}