+void af_alg_release_parent(struct sock *sk)
+{
+ struct alg_sock *ask = alg_sk(sk);
+ unsigned int nokey = ask->nokey_refcnt;
+ bool last = nokey && !ask->refcnt;
+
+ sk = ask->parent;
+ ask = alg_sk(sk);
+
+ lock_sock(sk);
+ ask->nokey_refcnt -= nokey;
+ if (!last)
+ last = !--ask->refcnt;
+ release_sock(sk);
+
+ if (last)
+ sock_put(sk);
+}
+EXPORT_SYMBOL_GPL(af_alg_release_parent);
+