X-Git-Url: http://git.agner.ch/gitweb/?a=blobdiff_plain;f=crypto%2Falgif_hash.c;h=b4c24fe3dcfb5ed575350406c9dd7ece3c006aef;hb=8d3de01cfa37bfcf54f1d84eafb7db8530b74199;hp=1396ad0787fc6b84ebdd9a9d552ce7eaccf1e698;hpb=71f881ce5783482635d9534225cedd06b4fe21cb;p=linux-drm-fsl-dcu.git

diff --git a/crypto/algif_hash.c b/crypto/algif_hash.c
index 1396ad0787fc..b4c24fe3dcfb 100644
--- a/crypto/algif_hash.c
+++ b/crypto/algif_hash.c
@@ -181,9 +181,14 @@ static int hash_accept(struct socket *sock, struct socket *newsock, int flags)
 	struct sock *sk2;
 	struct alg_sock *ask2;
 	struct hash_ctx *ctx2;
+	bool more;
 	int err;
 
-	err = crypto_ahash_export(req, state);
+	lock_sock(sk);
+	more = ctx->more;
+	err = more ? crypto_ahash_export(req, state) : 0;
+	release_sock(sk);
+
 	if (err)
 		return err;
 
@@ -194,7 +199,10 @@ static int hash_accept(struct socket *sock, struct socket *newsock, int flags)
 	sk2 = newsock->sk;
 	ask2 = alg_sk(sk2);
 	ctx2 = ask2->private;
-	ctx2->more = 1;
+	ctx2->more = more;
+
+	if (!more)
+		return err;
 
 	err = crypto_ahash_import(&ctx2->req, state);
 	if (err) {