crypto: api - Use kzfree

Use kzfree() instead of memset() + kfree().

Signed-off-by: Johannes Weiner <hannes@cmpxchg.org>
Reviewed-by: Pekka Enberg <penberg@cs.helsinki.fi>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

diff --git a/crypto/api.c b/crypto/api.c
index fd2545d..f500fb8 100644 (file)
--- a/crypto/api.c
+++ b/crypto/api.c
@@ -580,20 +580,17 @@ EXPORT_SYMBOL_GPL(crypto_alloc_tfm);
 void crypto_destroy_tfm(void *mem, struct crypto_tfm *tfm)
 {
        struct crypto_alg *alg;
-       int size;
 
        if (unlikely(!mem))
                return;
 
        alg = tfm->__crt_alg;
-       size = ksize(mem);
 
        if (!tfm->exit && alg->cra_exit)
                alg->cra_exit(tfm);
        crypto_exit_ops(tfm);
        crypto_mod_put(alg);
-       memset(mem, 0, size);
-       kfree(mem);
+       kzfree(mem);
 }
 EXPORT_SYMBOL_GPL(crypto_destroy_tfm);