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Re: [PATCH] cfg80211: fix cfg80211_leave() locking

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On Mon, 2014-03-03 at 14:07 +0100, Michal Kazior wrote:
> On 3 March 2014 13:55, Johannes Berg <johannes@xxxxxxxxxxxxxxxx> wrote:
> > On Fri, 2014-02-28 at 15:58 +0100, Michal Kazior wrote:
> >> The beacon_interval was set unprotected by
> >> wdev.mtx. This could possibly lead to inconsistent
> >> cfg80211 states.
> >
> > Why not just this patch? The beacon_interval is already set to 0 in
> > stop_ap(), and is irrelevant for the other modes.
> >
> > diff --git a/net/wireless/core.c b/net/wireless/core.c
> > index 010892b81a06..a3bf18d11609 100644
> > --- a/net/wireless/core.c
> > +++ b/net/wireless/core.c
> > @@ -788,8 +788,6 @@ void cfg80211_leave(struct cfg80211_registered_device *rdev,
> >         default:
> >                 break;
> >         }
> > -
> > -       wdev->beacon_interval = 0;
> >  }
> >
> >  static int cfg80211_netdev_notifier_call(struct notifier_block *nb,
> >
> >
> > johannes
> 
> Good point. I was focused on locking changes (for my other patch) and
> noticed the beacon_interval being unprotected and didn't look more
> into it. Should I respin or are you going to apply your patch
> yourself? Either way is fine with me.

I've got it.

johannes

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