git: kernel - Fix tty cool-aid

[Matthew Dillon]

commit 91148feada8f254557a766184a5844edee60ac83
Author: Matthew Dillon <dillon at apollo.backplane.com>
Date:   Tue Jan 29 11:11:49 2013 -0800

    kernel - Fix tty cool-aid
    
    * Fix a tty crash in the ^T handling code.  The code can race LWP
      destruction and blow up.

Summary of changes:
 sys/kern/tty.c | 86 ++++++++++++++++++++++++++++++++++++++++++++--------------
 1 file changed, 65 insertions(+), 21 deletions(-)

http://gitweb.dragonflybsd.org/dragonfly.git/commitdiff/91148feada8f254557a766184a5844edee60ac83


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