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>

1 files changed, 1 insertions, 4 deletions

diff --git a/crypto/api.c b/crypto/api.c
index fd2545decb28..f500fb840be9 100644
--- 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);