mac80211: fix sdata->radar_required locking

radar_required setting wasn't protected by
local->mtx in some places. This should prevent
from scanning/radar detection/roc colliding.

Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/net/mac80211/ibss.c b/net/mac80211/ibss.c
index 82d3d14b03c5..f01d4683d473 100644
--- a/net/mac80211/ibss.c
+++ b/net/mac80211/ibss.c
@@ -303,6 +303,7 @@ static void __ieee80211_sta_join_ibss(struct ieee80211_sub_if_data *sdata,
                 mutex_unlock(&local->mtx);
                 return;
         }
+        sdata->radar_required = radar_required;
         mutex_unlock(&local->mtx);
 
         memcpy(ifibss->bssid, bssid, ETH_ALEN);
@@ -318,7 +319,6 @@ static void __ieee80211_sta_join_ibss(struct ieee80211_sub_if_data *sdata,
         rcu_assign_pointer(ifibss->presp, presp);
         mgmt = (void *)presp->head;
 
-        sdata->radar_required = radar_required;
         sdata->vif.bss_conf.enable_beacon = true;
         sdata->vif.bss_conf.beacon_int = beacon_int;
         sdata->vif.bss_conf.basic_rates = basic_rates;