crypto: af_alg - Allow af_af_alg_release_parent to be called on nokey path
commit 6a935170a980024dd29199e9dbb5c4da4767a1b9 upstream. This patch allows af_alg_release_parent to be called even for nokey sockets. Cc: stable@vger.kernel.org Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: Andrey Ryabinin <aryabinin@virtuozzo.com> Signed-off-by: Willy Tarreau <w@1wt.eu>
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@ -133,6 +133,12 @@ void af_alg_release_parent(struct sock *sk)
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bool last;
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sk = ask->parent;
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if (ask->nokey_refcnt && !ask->refcnt) {
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sock_put(sk);
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return;
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}
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ask = alg_sk(sk);
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lock_sock(sk);
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@ -258,8 +264,8 @@ int af_alg_accept(struct sock *sk, struct socket *newsock)
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struct alg_sock *ask = alg_sk(sk);
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const struct af_alg_type *type;
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struct sock *sk2;
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unsigned int nokey;
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int err;
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bool nokey;
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lock_sock(sk);
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type = ask->type;
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@ -292,6 +298,7 @@ int af_alg_accept(struct sock *sk, struct socket *newsock)
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sock_hold(sk);
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alg_sk(sk2)->parent = sk;
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alg_sk(sk2)->type = type;
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alg_sk(sk2)->nokey_refcnt = nokey;
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newsock->ops = type->ops;
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newsock->state = SS_CONNECTED;
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@ -31,6 +31,7 @@ struct alg_sock {
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struct sock *parent;
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unsigned int refcnt;
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unsigned int nokey_refcnt;
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const struct af_alg_type *type;
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void *private;
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