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>
	[illumos-gate merge]

commit 197c9523b8946cf70fab2bc4ee633b18fc5bde68
    4123 Locks should not be held across the call to ddi_periodic_delete(9f)