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authorHerbert Xu <herbert@gondor.apana.org.au>2016-02-03 21:39:27 +0800
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2016-02-17 12:31:05 -0800
commit12426bd6b05f286fe252ddb69c4aea3209d01d5b (patch)
tree56a6a0a72ad043f2b03fcb8104ff83d691891813 /crypto
parent66bca97f21762ba58ce3d6767b27f782c702ef65 (diff)
crypto: algif_skcipher - Do not set MAY_BACKLOG on the async path
commit dad41997063723eaf5f77bc2015606a5a9bce320 upstream. The async path cannot use MAY_BACKLOG because it is not meant to block, which is what MAY_BACKLOG does. On the other hand, both the sync and async paths can make use of MAY_SLEEP. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'crypto')
-rw-r--r--crypto/algif_skcipher.c5
1 files changed, 3 insertions, 2 deletions
diff --git a/crypto/algif_skcipher.c b/crypto/algif_skcipher.c
index a82804e2a9bd..f5e9f9310b48 100644
--- a/crypto/algif_skcipher.c
+++ b/crypto/algif_skcipher.c
@@ -536,7 +536,7 @@ static int skcipher_recvmsg_async(struct socket *sock, struct msghdr *msg,
sg_init_table(sreq->tsg, tx_nents);
memcpy(iv, ctx->iv, ivsize);
skcipher_request_set_tfm(req, tfm);
- skcipher_request_set_callback(req, CRYPTO_TFM_REQ_MAY_BACKLOG,
+ skcipher_request_set_callback(req, CRYPTO_TFM_REQ_MAY_SLEEP,
skcipher_async_cb, sreq);
while (iov_iter_count(&msg->msg_iter)) {
@@ -950,7 +950,8 @@ static int skcipher_accept_parent_nokey(void *private, struct sock *sk)
ask->private = ctx;
skcipher_request_set_tfm(&ctx->req, skcipher);
- skcipher_request_set_callback(&ctx->req, CRYPTO_TFM_REQ_MAY_BACKLOG,
+ skcipher_request_set_callback(&ctx->req, CRYPTO_TFM_REQ_MAY_SLEEP |
+ CRYPTO_TFM_REQ_MAY_BACKLOG,
af_alg_complete, &ctx->completion);
sk->sk_destruct = skcipher_sock_destruct;