1 files changed, 6 insertions, 0 deletions

diff --git a/net/wireless/reg.c b/net/wireless/reg.c
index 6c1993d99902..3a734949769d 100644
--- a/net/wireless/reg.c
+++ b/net/wireless/reg.c
@@ -907,6 +907,7 @@ EXPORT_SYMBOL(freq_reg_info);
 int freq_reg_info(struct wiphy *wiphy, u32 center_freq, u32 *bandwidth,
                          const struct ieee80211_reg_rule **reg_rule)
 {
+        assert_cfg80211_lock();
         return freq_reg_info_regd(wiphy, center_freq,
                 bandwidth, reg_rule, NULL);
 }
@@ -1176,6 +1177,8 @@ static void handle_channel_custom(struct wiphy *wiphy,
         struct ieee80211_supported_band *sband;
         struct ieee80211_channel *chan;
 
+        assert_cfg80211_lock();
+
         sband = wiphy->bands[band];
         BUG_ON(chan_idx >= sband->n_channels);
         chan = &sband->channels[chan_idx];
@@ -1214,10 +1217,13 @@ void wiphy_apply_custom_regulatory(struct wiphy *wiphy,
                                    const struct ieee80211_regdomain *regd)
 {
         enum ieee80211_band band;
+
+        mutex_lock(&cfg80211_mutex);
         for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
                 if (wiphy->bands[band])
                         handle_band_custom(wiphy, band, regd);
         }
+        mutex_unlock(&cfg80211_mutex);
 }
 EXPORT_SYMBOL(wiphy_apply_custom_regulatory);