CID 1440805: Memory leak in configured_nameserver_address() due to #21900

** CID 1440805:  Resource leaks  (RESOURCE_LEAK)
/src/feature/relay/dns.c: 1389 in configured_nameserver_address()


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*** CID 1440805:  Resource leaks  (RESOURCE_LEAK)
/src/feature/relay/dns.c: 1389 in configured_nameserver_address()
1383        tor_addr_t *tor_addr = tor_malloc(sizeof(tor_addr_t));
1384        if (tor_addr_from_sockaddr(tor_addr,
1385                                   (const struct sockaddr *)&sa,
1386                                   NULL) == 0) {
1387          return tor_addr;
1388        }
   CID 1440805:  Resource leaks  (RESOURCE_LEAK)
   Variable "tor_addr" going out of scope leaks the storage it points to.
1389      }
1390     
1391      return NULL;
1392     }
1393     #endif