CID 1444641: REVERSE_INULL in test_hs_cache.c

Just reported today.

** CID 1444641:  Null pointer dereferences  (REVERSE_INULL)
/src/test/test_hs_cache.c: 265 in helper_fetch_desc_from_hsdir()
259                             &received_desc, &body_used, HS_DESC_MAX_LEN, 0);
260         tor_free(headers);
261       }
262     
263      done:
264       tor_free(hsdir_query_str);
>>>     CID 1444641:  Null pointer dereferences  (REVERSE_INULL)
>>>     Null-checking "conn" suggests that it may be null, but it has already been dereferenced on all paths leading to the check.
265       if (conn)
266         connection_free_minimal(TO_CONN(conn));
267     
268       return received_desc;
269     }
270