diff --git a/fs/cifs/cifsencrypt.c b/fs/cifs/cifsencrypt.c
index 71436d1fca13bede14a8a25ac6a9ae126e80dede..a85a83d1d00fe3008213830b0059b47da81b19a6 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;