From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Eliad Peller , Johannes Berg Subject: [PATCH 3.14 034/228] mac80211: fix nested rtnl locking on ieee80211_reconfig Date: Wed, 4 Jun 2014 16:21:03 -0700 Message-Id: <20140604232349.169335040@linuxfoundation.org> In-Reply-To: <20140604232347.966798903@linuxfoundation.org> References: <20140604232347.966798903@linuxfoundation.org> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Sender: linux-kernel-owner@vger.kernel.org List-ID: 3.14-stable review patch. If anyone has any objections, please let me know. ------------------ From: Eliad Peller commit e669ba2d06c6195662601956454ac959892f0762 upstream. ieee80211_reconfig already holds rtnl, so calling cfg80211_sched_scan_stopped results in deadlock. Use the rtnl-version of this function instead. Fixes: d43c6b6 ("mac80211: reschedule sched scan after HW restart") Signed-off-by: Eliad Peller Signed-off-by: Johannes Berg Signed-off-by: Greg Kroah-Hartman --- net/mac80211/util.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/net/mac80211/util.c +++ b/net/mac80211/util.c @@ -1754,7 +1754,7 @@ int ieee80211_reconfig(struct ieee80211_ mutex_unlock(&local->mtx); if (sched_scan_stopped) - cfg80211_sched_scan_stopped(local->hw.wiphy); + cfg80211_sched_scan_stopped_rtnl(local->hw.wiphy); /* * If this is for hw restart things are still running.