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-rw-r--r--crypto/shash.c18
1 files changed, 13 insertions, 5 deletions
diff --git a/crypto/shash.c b/crypto/shash.c
index 44d297b82a8f..40311ccad3fa 100644
--- a/crypto/shash.c
+++ b/crypto/shash.c
@@ -53,6 +53,13 @@ static int shash_setkey_unaligned(struct crypto_shash *tfm, const u8 *key,
return err;
}
+static void shash_set_needkey(struct crypto_shash *tfm, struct shash_alg *alg)
+{
+ if (crypto_shash_alg_has_setkey(alg) &&
+ !(alg->base.cra_flags & CRYPTO_ALG_OPTIONAL_KEY))
+ crypto_shash_set_flags(tfm, CRYPTO_TFM_NEED_KEY);
+}
+
int crypto_shash_setkey(struct crypto_shash *tfm, const u8 *key,
unsigned int keylen)
{
@@ -65,8 +72,10 @@ int crypto_shash_setkey(struct crypto_shash *tfm, const u8 *key,
else
err = shash->setkey(tfm, key, keylen);
- if (err)
+ if (unlikely(err)) {
+ shash_set_needkey(tfm, shash);
return err;
+ }
crypto_shash_clear_flags(tfm, CRYPTO_TFM_NEED_KEY);
return 0;
@@ -373,7 +382,8 @@ int crypto_init_shash_ops_async(struct crypto_tfm *tfm)
crt->final = shash_async_final;
crt->finup = shash_async_finup;
crt->digest = shash_async_digest;
- crt->setkey = shash_async_setkey;
+ if (crypto_shash_alg_has_setkey(alg))
+ crt->setkey = shash_async_setkey;
crypto_ahash_set_flags(crt, crypto_shash_get_flags(shash) &
CRYPTO_TFM_NEED_KEY);
@@ -395,9 +405,7 @@ static int crypto_shash_init_tfm(struct crypto_tfm *tfm)
hash->descsize = alg->descsize;
- if (crypto_shash_alg_has_setkey(alg) &&
- !(alg->base.cra_flags & CRYPTO_ALG_OPTIONAL_KEY))
- crypto_shash_set_flags(hash, CRYPTO_TFM_NEED_KEY);
+ shash_set_needkey(hash, alg);
return 0;
}