cifs: Fix regression in LANMAN (LM) auth code

LANMAN response length was changed to 16 bytes instead of 24 bytes.
Revert it back to 24 bytes.

Signed-off-by: Shirish Pargaonkar <[e-mail]>
CC: [e-mail]
Signed-off-by: Steve French <[e-mail]>

fs/cifs/sess.c

···
 
 	if (type == LANMAN) {
 #ifdef CONFIG_CIFS_WEAK_PW_HASH
-		char lnm_session_key[CIFS_SESS_KEY_SIZE];
+		char lnm_session_key[CIFS_AUTH_RESP_SIZE];
 
 		pSMB->req.hdr.Flags2 &= ~SMBFLG2_UNICODE;
 
 		/* no capabilities flags in old lanman negotiation */
 
-		pSMB->old_req.PasswordLength = cpu_to_le16(CIFS_SESS_KEY_SIZE);
+		pSMB->old_req.PasswordLength = cpu_to_le16(CIFS_AUTH_RESP_SIZE);
 
 		/* Calculate hash with password and copy into bcc_ptr.
 		 * Encryption Key (stored as in cryptkey) gets used if the
···
 					true : false, lnm_session_key);
 
 		ses->flags |= CIFS_SES_LANMAN;
-		memcpy(bcc_ptr, (char *)lnm_session_key, CIFS_SESS_KEY_SIZE);
-		bcc_ptr += CIFS_SESS_KEY_SIZE;
+		memcpy(bcc_ptr, (char *)lnm_session_key, CIFS_AUTH_RESP_SIZE);
+		bcc_ptr += CIFS_AUTH_RESP_SIZE;
 
 		/* can not sign if LANMAN negotiated so no need
 		to calculate signing key? but what if server