K 10
svn:author
V 4
avos
K 8
svn:date
V 27
2019-01-09T12:50:24.986135Z
K 7
svn:log
V 251
net80211: fix panic when device is removed during initialization

if_dead() is called during device detach - check if interface is
still exists before trying to refresh vap MAC address
(IF_LLADDR will trigger page fault otherwise).

MFC after:	5 days

END