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    Subject[patch 2/8] crypto: use kzfree()
    Use kzfree() instead of memset() + kfree().

    Signed-off-by: Johannes Weiner <hannes@cmpxchg.org>
    Cc: Herbert Xu <herbert@gondor.apana.org.au>
    ---
    crypto/api.c | 5 +----
    1 file changed, 1 insertion(+), 4 deletions(-)

    --- a/crypto/api.c
    +++ b/crypto/api.c
    @@ -569,20 +569,17 @@ 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);




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