summary refs log tree commit diff
path: root/crypto/ahash.c
diff options
context:
space:
mode:
authorHerbert Xu <herbert@gondor.apana.org.au>2020-08-18 18:25:34 +1000
committerHerbert Xu <herbert@gondor.apana.org.au>2020-08-28 16:58:28 +1000
commite73d340db6448013ac219d105654d2b9868a8dd2 (patch)
tree2b14a7315bba9263ac5ff9f92528b86436318afb /crypto/ahash.c
parent6779d0e6b0fe193ab3010ea201782ca6f75a3862 (diff)
downloadlinux-e73d340db6448013ac219d105654d2b9868a8dd2.tar.gz
crypto: ahash - Add init_tfm/exit_tfm
This patch adds the type-safe init_tfm/exit_tfm functions to the
ahash interface.  This is meant to replace the unsafe cra_init and
cra_exit interface.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'crypto/ahash.c')
-rw-r--r--crypto/ahash.c13
1 files changed, 12 insertions, 1 deletions
diff --git a/crypto/ahash.c b/crypto/ahash.c
index d84ad925dfc9..c2ca631a111f 100644
--- a/crypto/ahash.c
+++ b/crypto/ahash.c
@@ -444,6 +444,14 @@ static int ahash_def_finup(struct ahash_request *req)
 	return ahash_def_finup_finish1(req, err);
 }
 
+static void crypto_ahash_exit_tfm(struct crypto_tfm *tfm)
+{
+	struct crypto_ahash *hash = __crypto_ahash_cast(tfm);
+	struct ahash_alg *alg = crypto_ahash_alg(hash);
+
+	alg->exit_tfm(hash);
+}
+
 static int crypto_ahash_init_tfm(struct crypto_tfm *tfm)
 {
 	struct crypto_ahash *hash = __crypto_ahash_cast(tfm);
@@ -467,7 +475,10 @@ static int crypto_ahash_init_tfm(struct crypto_tfm *tfm)
 		ahash_set_needkey(hash);
 	}
 
-	return 0;
+	if (alg->exit_tfm)
+		tfm->exit = crypto_ahash_exit_tfm;
+
+	return alg->init_tfm ? alg->init_tfm(hash) : 0;
 }
 
 static unsigned int crypto_ahash_extsize(struct crypto_alg *alg)