On 32 bit systems num_aces * sizeof(struct cifs_ace *) could overflow
leading to a smaller ppace buffer than we expected.
Signed-off-by: NDan Carpenter <dan.carpenter@oracle.com>
Acked-by: NJeff Layton <jlayton@samba.org>
Signed-off-by: NSteve French <smfrench@gmail.com>