[PATCH 4.4 092/117] crypto: algif_hash - Remove custom release parent function

Greg Kroah-Hartman
2016-02-15T00:22:39Z

From: Herbert Xu <herbert@gondor.apana.org.au>

commit f1d84af1835846a5a2b827382c5848faf2bb0e75 upstream.

This patch removes the custom release parent function as the
generic af_alg_release_parent now works for nokey sockets too.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
crypto/algif_hash.c | 43 +++----------------------------------------
1 file changed, 3 insertions(+), 40 deletions(-)

--- a/crypto/algif_hash.c
+++ b/crypto/algif_hash.c
@@ -384,7 +384,7 @@ static int hash_setkey(void *private, co
return err;
}

-static void hash_sock_destruct_common(struct sock *sk)
+static void hash_sock_destruct(struct sock *sk)
{
struct alg_sock *ask = alg_sk(sk);
struct hash_ctx *ctx = ask->private;
@@ -392,33 +392,10 @@ static void hash_sock_destruct_common(st
sock_kzfree_s(sk, ctx->result,
crypto_ahash_digestsize(crypto_ahash_reqtfm(&ctx->req)));
sock_kfree_s(sk, ctx, ctx->len);
-}
-
-static void hash_sock_destruct(struct sock *sk)
-{
- hash_sock_destruct_common(sk);
- af_alg_release_parent(sk);
-}
-
-static void hash_release_parent_nokey(struct sock *sk)
-{
- struct alg_sock *ask = alg_sk(sk);
-
- if (!ask->refcnt) {
- sock_put(ask->parent);
- return;
- }
-
af_alg_release_parent(sk);
}

-static void hash_sock_destruct_nokey(struct sock *sk)
-{
- hash_sock_destruct_common(sk);
- hash_release_parent_nokey(sk);
-}
-
-static int hash_accept_parent_common(void *private, struct sock *sk)
+static int hash_accept_parent_nokey(void *private, struct sock *sk)
{
struct hash_ctx *ctx;
struct alg_sock *ask = alg_sk(sk);
@@ -461,21 +438,7 @@ static int hash_accept_parent(void *priv
if (!tfm->has_key && crypto_ahash_has_setkey(tfm->hash))
return -ENOKEY;

- return hash_accept_parent_common(private, sk);
-}
-
-static int hash_accept_parent_nokey(void *private, struct sock *sk)
-{
- int err;
-
- err = hash_accept_parent_common(private, sk);
- if (err)
- goto out;
-
- sk->sk_destruct = hash_sock_destruct_nokey;
-
-out:
- return err;
+ return hash_accept_parent_nokey(private, sk);
}

static const struct af_alg_type algif_type_hash = {