04c91ac48a
Without this change, unmounting smbfs filesystems with an INVARIANTS kernel would panic after 10e64782ed59727e8c9fe4a5c7e17f497903c8eb. Found by: markj Reviewed by: markj, jhb Obtained from: CheriBSD MFC after: 3 days Sponsored by: DARPA Differential Revision: https://reviews.freebsd.org/D32492