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Code Issues Releases Activity

MFp4: correct locking issues in nd6_lookup

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Supported by:	FreeBSD Foundation
This commit is contained in:
Sam Leffler 2003-10-14 18:49:08 +00:00
parent 888c2a3c4e
commit ba00f0096d
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=121092
1 changed files with 4 additions and 1 deletions
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5
sys/netinet6/nd6.c
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@ -811,7 +811,6 @@ nd6_lookup(addr6, create, ifp)
RTFREE_LOCKED(rt);
rt = 0;
}
RT_UNLOCK(rt);
}
if (!rt) {
if (create && ifp) {
@ -846,6 +845,7 @@ nd6_lookup(addr6, create, ifp)
}
if (rt == NULL)
return (NULL);
RT_LOCK(rt);
if (rt->rt_llinfo) {
struct llinfo_nd6 *ln =
(struct llinfo_nd6 *)rt->rt_llinfo;
@ -854,6 +854,7 @@ nd6_lookup(addr6, create, ifp)
} else
return (NULL);
}
RT_LOCK_ASSERT(rt);
rt->rt_refcnt--;
/*
* Validation for the entry.
@ -877,8 +878,10 @@ nd6_lookup(addr6, create, ifp)
ifp ? if_name(ifp) : "unspec");
/* xxx more logs... kazu */
}
RT_UNLOCK(rt);
return (NULL);
}
RT_UNLOCK(rt); /* XXX not ready to return rt locked */
return (rt);
}