kern/18503: check for error return from vfs_allocate_syncvnode()

[Colin Percival]

Synopsis: check for error return from vfs_allocate_syncvnode()

State-Changed-From-To: open->closed
State-Changed-By: cperciva
State-Changed-When: Tue Feb 17 21:25:45 PST 2004
State-Changed-Why: 
Fixed, thanks.

http://www.freebsd.org/cgi/query-pr.cgi?pr=18503