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MFC r206469:

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In if_detach_internal() only try to do the detach run if if_attachdomain1()
  has actually succeeded to initialize and attach.  There is a theoretical
  possibility to drop out early in if_attachdomain1() leaving the array
  uninitialized if we cannot get the lock.

  Discussed with:       rwatson
This commit is contained in:
Bjoern A. Zeeb 2010-04-21 19:47:19 +00:00
parent 407b19379c
commit b0cf9f5f20
1 changed files with 1 additions and 1 deletions
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2
sys/net/if.c
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@ -931,7 +931,7 @@ if_detach_internal(struct ifnet *ifp, int vmove)
if_delgroups(ifp);
IF_AFDATA_LOCK(ifp);
for (dp = domains; dp; dp = dp->dom_next) {
for (dp = domains; ifp->if_afdata_initialized > 0 && dp; dp = dp->dom_next) {
if (dp->dom_ifdetach && ifp->if_afdata[dp->dom_family])
(*dp->dom_ifdetach)(ifp,
ifp->if_afdata[dp->dom_family]);