4123 Locks should not be held across the call to ddi_periodic_delete(9f)
Reviewed by: Keith Wesolowski <keith.wesolowski@joyent.com>
Reviewed by: Joshua M. Clulow <josh@sysmgr.org>
Reviewed by: Garrett D'Amore <garrett@damore.org>
Reviewed by: David Pacheco <dap@joyent.com>
Approved by: Dan McDonald <danmcd@omniti.com>