mt76: mt7615: add missing lock in mt7615_regd_notifier

Make sure to run mt7615_dfs_init_radar_detector in mt7615_regd_notifier holding mt76 mutex in order to avoid races and set the device in full power Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: Felix Fietkau <nbd@nbd.name>
mariux64 · Jul 21, 2020 · 030aaed · 030aaed
1 parent 888a678
commit 030aaed
Showing 1 changed file with 2 additions and 0 deletions.
diff --git a/drivers/net/wireless/mediatek/mt76/mt7615/init.c b/drivers/net/wireless/mediatek/mt76/mt7615/init.c
@@ -285,7 +285,9 @@ mt7615_regd_notifier(struct wiphy *wiphy,
 	if (!(chandef->chan->flags & IEEE80211_CHAN_RADAR))
 		return;
 
+	mt7615_mutex_acquire(dev);
 	mt7615_dfs_init_radar_detector(phy);
+	mt7615_mutex_release(dev);
 }
 
 static void