mac80211: DFS setup chandef for radar_event correctly

Setup chandef for radar event correctly, before we
will clear this in ieee80211_dfs_cac_cancel() function.

Without this patch mac80211 will report wrong channel
width in case we will get radar event during active CAC.

Signed-off-by: Janusz Dziedzic <janusz.dziedzic@tieto.com>
Reviewed-by: Luis R. Rodriguez <mcgrof@do-not-panic.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

diff --git a/net/mac80211/util.c b/net/mac80211/util.c
index 592a181..e9ce36d 100644 (file)
--- a/net/mac80211/util.c
+++ b/net/mac80211/util.c
@@ -2278,17 +2278,15 @@ void ieee80211_dfs_radar_detected_work(struct work_struct *work)
 {
        struct ieee80211_local *local =
                container_of(work, struct ieee80211_local, radar_detected_work);
-       struct cfg80211_chan_def chandef;
+       struct cfg80211_chan_def chandef = local->hw.conf.chandef;
 
        ieee80211_dfs_cac_cancel(local);
 
        if (local->use_chanctx)
                /* currently not handled */
                WARN_ON(1);
-       else {
-               chandef = local->hw.conf.chandef;
+       else
                cfg80211_radar_event(local->hw.wiphy, &chandef, GFP_KERNEL);
-       }
 }
 
 void ieee80211_radar_detected(struct ieee80211_hw *hw)