[S390] 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: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>

2 files changed, 2 insertions, 4 deletions

diff --git a/arch/s390/crypto/prng.c b/arch/s390/crypto/prng.c
index eca724d229ec..b49c00ce65e9 100644
--- 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);
diff --git a/drivers/s390/crypto/zcrypt_pcixcc.c b/drivers/s390/crypto/zcrypt_pcixcc.c
index e7a1e22e77ac..c20d4790258e 100644
--- a/drivers/s390/crypto/zcrypt_pcixcc.c
+++ b/drivers/s390/crypto/zcrypt_pcixcc.c
@@ -781,8 +781,7 @@ static long zcrypt_pcixcc_send_cprb(struct zcrypt_device *zdev,
                 /* 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;
 }