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correctly set the tailq ptr when removing the last item in the q

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Approved by:	re (kensmith)
This commit is contained in:
Sam Leffler 2009-07-10 02:19:57 +00:00
parent 5c663ce9cf
commit f6c09dd6a8
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=195527
1 changed files with 2 additions and 1 deletions
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3
sys/net80211/ieee80211_ageq.c
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@ -211,7 +211,6 @@ ieee80211_ageq_remove(struct ieee80211_ageq *aq,
/*
* Remove from forward list; tail pointer is harder.
*/
*prev = m->m_nextpkt;
if (aq->aq_tail == m) {
KASSERT(m->m_nextpkt == NULL, ("not last"));
if (aq->aq_head == m) { /* list empty */
@ -223,6 +222,8 @@ ieee80211_ageq_remove(struct ieee80211_ageq *aq,
offsetof(struct mbuf, m_nextpkt));
}
}
*prev = m->m_nextpkt;
/* add to private list for return */
*phead = m;
phead = &m->m_nextpkt;