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Re: [RFC] mac80211: fix resuming when device is gone

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On Tue, 2011-08-09 at 13:45 +0200, Johannes Berg wrote:
> On Tue, 2011-08-09 at 13:43 +0200, Johannes Berg wrote:
> 
> > > Yes, but __ieee80211_resume() calls directly ieee80211_reconfig().
> > 
> > Sure. Just trying to make sure I understand where it's coming from. So
> > wiphy_unregister() is still running, before device_del(), but then we
> > get the resume from the core...
> > 
> > Shouldn't we implement this logic you just did in cfg80211 instead?
> 
> Although I guess until wiphy_unregister() returns, drivers must still
> expect callbacks, which clearly mac80211 didn't handle correctly here
> with the timer...

Actually...

Doesn't that just mean we need to reorder the code in _free_hw()? If we
do the timer stuff after wiphy_unregister(), we should be OK, and
prevent other, similar problems in the future too.

johannes

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