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

Signed-off-by: Ronnie Sahlberg <lsahlber@redhat.com>
Signed-off-by: Steve French <smfrench@gmail.com>
Reviewed-by: Pavel Shilovsky <pshilov@microsoft.com>
This commit is contained in:
Ronnie Sahlberg 2018-04-09 18:06:27 +10:00 • committed by Steve French
commit 9fdd2e0034