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From: Johannes Berg <johannes@sipsolutions.net>
To: Helmut Schaa <helmut.schaa@googlemail.com>
Cc: linux-wireless@vger.kernel.org, linville@tuxdriver.com
Subject: Re: [PATCH] mac80211: Fix race between tx path and ___ieee80211_stop_tx_ba_session
Date: Wed, 09 May 2012 11:01:04 +0200	[thread overview]
Message-ID: <1336554064.4323.6.camel@jlt3.sipsolutions.net> (raw)
In-Reply-To: <1336553772-7519-1-git-send-email-helmut.schaa@googlemail.com> (sfid-20120509_105648_217428_5DF1720D)

On Wed, 2012-05-09 at 10:56 +0200, Helmut Schaa wrote:
> ___ieee80211_stop_tx_ba_session first deletes the tx aggregation session
> timer and afterwards clears HT_AGG_STATE_OPERATIONAL. Hence, there is a
> small time window where the tx path can call mod_timer after
> del_timer_sync.
> 
> When ieee80211_start_tx_ba_session runs before the timer the call to
> init_timer will cause a BUG_ON:

This may have been fixed by my other patch where I check the state?

johannes


  reply	other threads:[~2012-05-09  9:01 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-05-09  8:56 [PATCH] mac80211: Fix race between tx path and ___ieee80211_stop_tx_ba_session Helmut Schaa
2012-05-09  9:01 ` Johannes Berg [this message]
2012-05-09 13:55   ` Helmut Schaa
2012-06-05 19:00     ` John W. Linville

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