hs-v3: Memory leak in rend_client_get_random_intro_impl()
From coverity report: ``` ** CID 1455168: Resource leaks (RESOURCE_LEAK) /src/feature/rend/rendclient.c: 1061 in rend_client_get_random_intro_impl() ________________________________________________________________________________________________________ *** CID 1455168: Resource leaks (RESOURCE_LEAK) /src/feature/rend/rendclient.c: 1061 in rend_client_get_random_intro_impl() 1055 usable_nodes = smartlist_new(); 1056 smartlist_add_all(usable_nodes, entry->parsed->intro_nodes); 1057 1058 /* Get service ID so we can use it to query the failure cache. If we fail to 1059 * parse it, this cache entry is no good. */ 1060 if (BUG(rend_get_service_id(entry->parsed->pk, service_id) < 0)) { >>> CID 1455168: Resource leaks (RESOURCE_LEAK) >>> Variable "usable_nodes" going out of scope leaks the storage it points to. 1061 return NULL; 1062 } ``` Was just introduced couple days ago.
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