From: Johannes Berg <johannes.berg@xxxxxxxxx> My cfg80211/mac80211 locking unification broke the sdata locking in ieee80211_set_power_mgmt, it needs to acquire the lock for __ieee80211_request_smps(). Add the locking. Reported-by: Jakub Kicinski <kubakici@xxxxx> Signed-off-by: Johannes Berg <johannes.berg@xxxxxxxxx> --- net/mac80211/cfg.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c index 9034da1..3062210 100644 --- a/net/mac80211/cfg.c +++ b/net/mac80211/cfg.c @@ -2378,7 +2378,9 @@ static int ieee80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev, local->dynamic_ps_forced_timeout = timeout; /* no change, but if automatic follow powersave */ + sdata_lock(sdata); __ieee80211_request_smps(sdata, sdata->u.mgd.req_smps); + sdata_unlock(sdata); if (local->hw.flags & IEEE80211_HW_SUPPORTS_DYNAMIC_PS) ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS); -- 1.8.0 -- 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
