Fix node reference leakage in iwi(4)/ipw(4)

[Sepherosa Ziehau]

On 12 Feb 2007 19:09:40 GMT, Johannes Hofmann <Johannes.Hofmann at gmx.de> wrote:
Hi sephe,

your patch installs and runs nicely on my thinkpad t42 (iwi).
Thank you for testing!

No negative effects so far. What problem is it supposed to fix?
iwi(4)/ipw(4) code assumes that if ieee80211_newstate() (e.g.
iwi_softc.sc_newstate()) is not called with certain IEEE80211_S_, then
mgtq will not be touched, while 802_11 layer does not know that these
two drivers have such an assumption.  This kind of things probably
will bite us in the future ;]
Best Regards,
sephe
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