K 10
svn:author
V 4
neel
K 8
svn:date
V 27
2014-10-08T15:39:24.986528Z
K 7
svn:log
V 177
MFC r272270:

tty_rel_free() can be called more than once for the same tty so make sure
that the tty is dequeued from 'tty_list' only the first time.

Approved by:	re (glebius)

END