Search Linux Wireless

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

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



On Tue, 2011-08-09 at 11:39 +0200, Stanislaw Gruszka wrote:

> Note, I assumed that ieee80211_reconfig() have no sense
> after ieee80211_unregister_hw()?

Yeah.

> > > Then if ieee80211_reconfig() is called, we schedule
> > > sta_cleanup timer. After that, when sysfs drop reference counter we
> > > free rdev. Then sta_info_cleanup() crash kernel.
> > 
> > Ok let me get this straight -- even after device_del() we get a resume
> > callback from the core subsystem? That doesn't seem right.
> 
> No, ieee80211_reconfig() is called before device_del() (but can be
> called right after ieee80211_unregister_hw() and perhaps
> ieee80211_free_hw).

Ah so it's racy.

But I think you meant to say resume() is called before device_del()?

johannes

--
To unsubscribe from this list: send the line "unsubscribe linux-wireless" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html


[Index of Archives]     [Linux Host AP]     [ATH6KL]     [Linux Bluetooth]     [Linux Netdev]     [Kernel Newbies]     [Linux Kernel]     [IDE]     [Security]     [Git]     [Netfilter]     [Bugtraq]     [Yosemite News]     [MIPS Linux]     [ARM Linux]     [Linux Security]     [Linux RAID]     [Linux ATA RAID]     [Samba]     [Device Mapper]
  Powered by Linux