cifs: replace a 4 with server->vals->header_preamble_size

Signed-off-by: Ronnie Sahlberg <[email protected]>
Signed-off-by: Steve French <[email protected]>
Reviewed-by: Pavel Shilovsky <[email protected]>

diff --git a/fs/cifs/smb2pdu.c b/fs/cifs/smb2pdu.c
index e01be06d588ee1148109904cf057109bbddb6104..5cbdddcafaec68f61c35b251150137c0ce227036 100644 (file)
--- a/fs/cifs/smb2pdu.c
+++ b/fs/cifs/smb2pdu.c
@@ -1131,7 +1131,7 @@ SMB2_sess_auth_rawntlmssp_negotiate(struct SMB2_sess_data *sess_data)
        if (rc)
                goto out;
 
-       if (offsetof(struct smb2_sess_setup_rsp, Buffer) - 4 !=
+       if (offsetof(struct smb2_sess_setup_rsp, Buffer) - ses->server->vals->header_preamble_size !=
                        le16_to_cpu(rsp->SecurityBufferOffset)) {
                cifs_dbg(VFS, "Invalid security buffer offset %d\n",
                        le16_to_cpu(rsp->SecurityBufferOffset));