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[PATCH 3.2 77/87] crypto: algif_hash - Remove custom release parent function

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  [PATCH 3.2 77/87] crypto: algif_hash - Remove custom release  parent function Ben Hutchings <ben@decadent.org.uk> - 2016-02-09 01:20 +0100

#1329752 — [PATCH 3.2 77/87] crypto: algif_hash - Remove custom release parent function

3.2.77-rc1 review patch.  If anyone has any objections, please let me know.

------------------

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: Ben Hutchings <ben@decadent.org.uk>
---
 crypto/algif_hash.c | 43 +++----------------------------------------
 1 file changed, 3 insertions(+), 40 deletions(-)

--- a/crypto/algif_hash.c
+++ b/crypto/algif_hash.c
@@ -395,7 +395,7 @@ 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;
@@ -403,33 +403,10 @@ static void hash_sock_destruct_common(st
 	sock_kfree_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);
@@ -472,21 +449,7 @@ 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 = {

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