diff --git a/crypto/af_alg.c b/crypto/af_alg.c index 85cea9de324a4f577bcbfb273d8f3a8917ca60e6..358749c38894e31481fb0d903c0d1f7504311aa8 100644 --- a/crypto/af_alg.c +++ b/crypto/af_alg.c @@ -1020,6 +1020,18 @@ ssize_t af_alg_sendpage(struct socket *sock, struct page *page, } EXPORT_SYMBOL_GPL(af_alg_sendpage); +/** + * af_alg_free_resources - release resources required for crypto request + */ +void af_alg_free_resources(struct af_alg_async_req *areq) +{ + struct sock *sk = areq->sk; + + af_alg_free_areq_sgls(areq); + sock_kfree_s(sk, areq, areq->areqlen); +} +EXPORT_SYMBOL_GPL(af_alg_free_resources); + /** * af_alg_async_cb - AIO callback handler * @@ -1036,18 +1048,13 @@ void af_alg_async_cb(struct crypto_async_request *_req, int err) struct kiocb *iocb = areq->iocb; unsigned int resultlen; - lock_sock(sk); - /* Buffer size written by crypto operation. */ resultlen = areq->outlen; - af_alg_free_areq_sgls(areq); - sock_kfree_s(sk, areq, areq->areqlen); - __sock_put(sk); + af_alg_free_resources(areq); + sock_put(sk); iocb->ki_complete(iocb, err ? err : resultlen, 0); - - release_sock(sk); } EXPORT_SYMBOL_GPL(af_alg_async_cb); diff --git a/crypto/algif_aead.c b/crypto/algif_aead.c index e2068b78993c50980d24e3ad28657f017d62a795..805f485ddf1be4711a9d2ec47998964543f1d217 100644 --- a/crypto/algif_aead.c +++ b/crypto/algif_aead.c @@ -283,12 +283,23 @@ static int _aead_recvmsg(struct socket *sock, struct msghdr *msg, if (msg->msg_iocb && !is_sync_kiocb(msg->msg_iocb)) { /* AIO operation */ + sock_hold(sk); areq->iocb = msg->msg_iocb; aead_request_set_callback(&areq->cra_u.aead_req, CRYPTO_TFM_REQ_MAY_BACKLOG, af_alg_async_cb, areq); err = ctx->enc ? crypto_aead_encrypt(&areq->cra_u.aead_req) : crypto_aead_decrypt(&areq->cra_u.aead_req); + + /* AIO operation in progress */ + if (err == -EINPROGRESS || err == -EBUSY) { + /* Remember output size that will be generated. */ + areq->outlen = outlen; + + return -EIOCBQUEUED; + } + + sock_put(sk); } else { /* Synchronous operation */ aead_request_set_callback(&areq->cra_u.aead_req, @@ -300,19 +311,9 @@ static int _aead_recvmsg(struct socket *sock, struct msghdr *msg, &ctx->wait); } - /* AIO operation in progress */ - if (err == -EINPROGRESS) { - sock_hold(sk); - - /* Remember output size that will be generated. */ - areq->outlen = outlen; - - return -EIOCBQUEUED; - } free: - af_alg_free_areq_sgls(areq); - sock_kfree_s(sk, areq, areq->areqlen); + af_alg_free_resources(areq); return err ? err : outlen; } diff --git a/crypto/algif_skcipher.c b/crypto/algif_skcipher.c index 9954b078f0b9cc7ccd853650f85920e29f159973..30cff827dd8fff048fa3e2ca7de770ab73022749 100644 --- a/crypto/algif_skcipher.c +++ b/crypto/algif_skcipher.c @@ -117,6 +117,7 @@ static int _skcipher_recvmsg(struct socket *sock, struct msghdr *msg, if (msg->msg_iocb && !is_sync_kiocb(msg->msg_iocb)) { /* AIO operation */ + sock_hold(sk); areq->iocb = msg->msg_iocb; skcipher_request_set_callback(&areq->cra_u.skcipher_req, CRYPTO_TFM_REQ_MAY_SLEEP, @@ -124,6 +125,16 @@ static int _skcipher_recvmsg(struct socket *sock, struct msghdr *msg, err = ctx->enc ? crypto_skcipher_encrypt(&areq->cra_u.skcipher_req) : crypto_skcipher_decrypt(&areq->cra_u.skcipher_req); + + /* AIO operation in progress */ + if (err == -EINPROGRESS || err == -EBUSY) { + /* Remember output size that will be generated. */ + areq->outlen = len; + + return -EIOCBQUEUED; + } + + sock_put(sk); } else { /* Synchronous operation */ skcipher_request_set_callback(&areq->cra_u.skcipher_req, @@ -136,19 +147,9 @@ static int _skcipher_recvmsg(struct socket *sock, struct msghdr *msg, &ctx->wait); } - /* AIO operation in progress */ - if (err == -EINPROGRESS) { - sock_hold(sk); - - /* Remember output size that will be generated. */ - areq->outlen = len; - - return -EIOCBQUEUED; - } free: - af_alg_free_areq_sgls(areq); - sock_kfree_s(sk, areq, areq->areqlen); + af_alg_free_resources(areq); return err ? err : len; } diff --git a/include/crypto/if_alg.h b/include/crypto/if_alg.h index 6abf0a3604dc391c3218a063473c737be662aa8a..38d9c5861ed8c110d5dbac1b6a807252b520f23e 100644 --- a/include/crypto/if_alg.h +++ b/include/crypto/if_alg.h @@ -242,6 +242,7 @@ int af_alg_sendmsg(struct socket *sock, struct msghdr *msg, size_t size, unsigned int ivsize); ssize_t af_alg_sendpage(struct socket *sock, struct page *page, int offset, size_t size, int flags); +void af_alg_free_resources(struct af_alg_async_req *areq); void af_alg_async_cb(struct crypto_async_request *_req, int err); unsigned int af_alg_poll(struct file *file, struct socket *sock, poll_table *wait);