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    Subject[patch 3/8] s390: use kzfree()
    Use kzfree() instead of memset() + kfree().

    Signed-off-by: Johannes Weiner <hannes@cmpxchg.org>
    Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
    Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
    ---
    arch/s390/crypto/prng.c | 3 +--
    drivers/s390/crypto/zcrypt_pcixcc.c | 3 +--
    2 files changed, 2 insertions(+), 4 deletions(-)

    --- a/arch/s390/crypto/prng.c
    +++ b/arch/s390/crypto/prng.c
    @@ -201,8 +201,7 @@ out_free:
    static void __exit prng_exit(void)
    {
    /* wipe me */
    - memset(p->buf, 0, prng_chunk_size);
    - kfree(p->buf);
    + kzfree(p->buf);
    kfree(p);

    misc_deregister(&prng_dev);
    --- a/drivers/s390/crypto/zcrypt_pcixcc.c
    +++ b/drivers/s390/crypto/zcrypt_pcixcc.c
    @@ -781,8 +781,7 @@ static long zcrypt_pcixcc_send_cprb(stru
    /* Signal pending. */
    ap_cancel_message(zdev->ap_dev, &ap_msg);
    out_free:
    - memset(ap_msg.message, 0x0, ap_msg.length);
    - kfree(ap_msg.message);
    + kzfree(ap_msg.message);
    return rc;
    }




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