git: syncache: Avoid NULL accessing to tcpcb of the to-be-dropped syncache

[Sepherosa Ziehau]

commit 21b7d68bd52a2bbe44cc582dc1ca31de580718cb
Author: Sepherosa Ziehau <sephe at dragonflybsd.org>
Date:   Mon May 20 21:44:32 2013 +0800

    syncache: Avoid NULL accessing to tcpcb of the to-be-dropped syncache
    
    It is possible that the syncache tcpcb is NULL when overflow happens,
    e.g. the corresponding listen socket was closed but the timeout has
    not recollected the staled syncache yet.

Summary of changes:
 sys/netinet/tcp_syncache.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

http://gitweb.dragonflybsd.org/dragonfly.git/commitdiff/21b7d68bd52a2bbe44cc582dc1ca31de580718cb


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