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List:       linux-cifs
Subject:    [PATCH v2 02/19] cifs: remove useless memset in LANMAN auth code
From:       Jeff Layton <jlayton () redhat ! com>
Date:       2013-05-28 12:11:43
Message-ID: 1369743120-18941-3-git-send-email-jlayton () redhat ! com
[Download RAW message or body]

It turns out that CIFS_SESS_KEY_SIZE == CIFS_ENCPWD_SIZE, so this
memset doesn't do anything useful.

Signed-off-by: Jeff Layton <jlayton@redhat.com>
Acked-by: Pavel Shilovsky <piastry@etersoft.ru>
---
 fs/cifs/cifsencrypt.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/fs/cifs/cifsencrypt.c b/fs/cifs/cifsencrypt.c
index 71436d1..a85a83d 100644
--- a/fs/cifs/cifsencrypt.c
+++ b/fs/cifs/cifsencrypt.c
@@ -276,7 +276,6 @@ int calc_lanman_hash(const char *password, const char *cryptkey, bool encrypt,
 		strncpy(password_with_pad, password, CIFS_ENCPWD_SIZE);
 
 	if (!encrypt && global_secflags & CIFSSEC_MAY_PLNTXT) {
-		memset(lnm_session_key, 0, CIFS_SESS_KEY_SIZE);
 		memcpy(lnm_session_key, password_with_pad,
 			CIFS_ENCPWD_SIZE);
 		return 0;
-- 
1.8.1.4

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