diff options
| author | Johannes Berg <johannes.berg@intel.com> | 2013-06-03 13:51:59 +0200 |
|---|---|---|
| committer | Johannes Berg <johannes.berg@intel.com> | 2013-06-03 13:51:59 +0200 |
| commit | ed405be5cb5e8e494e8dcd83b6eb1add34dc752a (patch) | |
| tree | 97e167b6dd4cc16aa31adcbba575c381013574c3 /net/mac80211/cfg.c | |
| parent | a8cd57b3042446250f19daf98d120802dffc768d (diff) | |
mac80211: fix sdata locking around __ieee80211_request_smps
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@wp.pl>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Diffstat (limited to 'net/mac80211/cfg.c')
| -rw-r--r-- | net/mac80211/cfg.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c index 9034da16cf1b..30622101d3b5 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); |