K 10
svn:author
V 6
kevans
K 8
svn:date
V 27
2020-01-09T03:52:50.831490Z
K 7
svn:log
V 412
if_vmove: return proper error status

if_vmove can fail if it lost a race and the vnet's already been moved. The
callers (and their callers) can generally cope with this, but right now
success is assumed. Plumb out the ENOENT from if_detach_internal if it
happens so that the error's properly reported to userland.

Reviewed by:	bz, kp
MFC after:	1 week
Differential Revision:	https://reviews.freebsd.org/D22780

END