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authorEric Biggers <ebiggers@google.com>2018-01-03 11:16:24 -0800
committerHerbert Xu <herbert@gondor.apana.org.au>2018-01-12 23:03:10 +1100
commitfa59b92d299f2787e6bae1ff078ee0982e80211f (patch)
tree1ba78470108c287ce18717cc1be10746b4fcd67f /crypto
parent841a3ff329713f796a63356fef6e2f72e4a3f6a3 (diff)
downloadlinux-next-fa59b92d299f2787e6bae1ff078ee0982e80211f.tar.gz
crypto: mcryptd - pass through absence of ->setkey()
When the mcryptd template is used to wrap an unkeyed hash algorithm, don't install a ->setkey() method to the mcryptd instance. This change is necessary for mcryptd to keep working with unkeyed hash algorithms once we start enforcing that ->setkey() is called when present. Cc: stable@vger.kernel.org Signed-off-by: Eric Biggers <ebiggers@google.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'crypto')
-rw-r--r--crypto/mcryptd.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/crypto/mcryptd.c b/crypto/mcryptd.c
index 2908382861ee..ace346b976b3 100644
--- a/crypto/mcryptd.c
+++ b/crypto/mcryptd.c
@@ -534,7 +534,8 @@ static int mcryptd_create_hash(struct crypto_template *tmpl, struct rtattr **tb,
inst->alg.finup = mcryptd_hash_finup_enqueue;
inst->alg.export = mcryptd_hash_export;
inst->alg.import = mcryptd_hash_import;
- inst->alg.setkey = mcryptd_hash_setkey;
+ if (crypto_hash_alg_has_setkey(halg))
+ inst->alg.setkey = mcryptd_hash_setkey;
inst->alg.digest = mcryptd_hash_digest_enqueue;
err = ahash_register_instance(tmpl, inst);