Date: Sat, 9 Apr 2011 12:11:19 +0000 (UTC) From: "Bjoern A. Zeeb" <bz@FreeBSD.org> To: cvs-src-old@freebsd.org Subject: cvs commit: src/sys/netinet6 nd6_nbr.c Message-ID: <201104091211.p39CBdLs054621@repoman.freebsd.org>
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bz 2011-04-09 12:11:19 UTC
FreeBSD src repository
Modified files: (Branch: RELENG_8)
sys/netinet6 nd6_nbr.c
Log:
SVN rev 220487 on 2011-04-09 12:11:19Z by bz
MFC r219562:
Make sure the locally cached value of rt->rt_gateway stays stable,
even after dropping the reference and unlocking. Previously we
have dereferenced a NULL pointer (after r121765).
Simply unlocking after the block does not work either because of
lock ordering (see r121765) and in addition we would still hold
a pointer to something that might be gone by the time we access it.
Thus take a copy of the value rather than just caching the pointer.
Submitted by: chenyl (netstar2008 126.com) (initial version)
PR: kern/151908
Revision Changes Path
1.69.2.6 +14 -7 src/sys/netinet6/nd6_nbr.c
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