mac80211: fix nested rtnl locking on ieee80211_reconfig

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")
Cc: stable@vger.kernel.org (3.14+)
Signed-off-by: Eliad Peller <eliadx.peller@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

diff --git a/net/mac80211/util.c b/net/mac80211/util.c
index 275c94f..3c36583 100644 (file)
--- a/net/mac80211/util.c
+++ b/net/mac80211/util.c
@@ -1780,7 +1780,7 @@ int ieee80211_reconfig(struct ieee80211_local *local)
        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.