3 files changed, 10 insertions, 6 deletions
diff --git a/net/wireless/reg.c b/net/wireless/reg.c
index b3ac0aace0e..0f61ae613f3 100644
--- a/net/wireless/reg.c
+++ b/net/wireless/reg.c
@@ -1095,17 +1095,18 @@ static void handle_reg_beacon(struct wiphy *wiphy,
 
 	chan->beacon_found = true;
 
+	if (wiphy->disable_beacon_hints)
+		return;
+
 	chan_before.center_freq = chan->center_freq;
 	chan_before.flags = chan->flags;
 
-	if ((chan->flags & IEEE80211_CHAN_PASSIVE_SCAN) &&
-	    !(chan->orig_flags & IEEE80211_CHAN_PASSIVE_SCAN)) {
+	if (chan->flags & IEEE80211_CHAN_PASSIVE_SCAN) {
 		chan->flags &= ~IEEE80211_CHAN_PASSIVE_SCAN;
 		channel_changed = true;
 	}
 
-	if ((chan->flags & IEEE80211_CHAN_NO_IBSS) &&
-	    !(chan->orig_flags & IEEE80211_CHAN_NO_IBSS)) {
+	if (chan->flags & IEEE80211_CHAN_NO_IBSS) {
 		chan->flags &= ~IEEE80211_CHAN_NO_IBSS;
 		channel_changed = true;
 	}
diff --git a/net/wireless/reg.h b/net/wireless/reg.h
index 662a9dad76d..3362c7c069b 100644
--- a/net/wireless/reg.h
+++ b/net/wireless/reg.h
@@ -30,7 +30,8 @@ int set_regdom(const struct ieee80211_regdomain *rd);
  * non-radar 5 GHz channels.
  *
  * Drivers do not need to call this, cfg80211 will do it for after a scan
- * on a newly found BSS.
+ * on a newly found BSS. If you cannot make use of this feature you can
+ * set the wiphy->disable_beacon_hints to true.
  */
 int regulatory_hint_found_beacon(struct wiphy *wiphy,
 					struct ieee80211_channel *beacon_chan,
diff --git a/net/wireless/scan.c b/net/wireless/scan.c
index 67714d7ed5b..0ccf3a07dc0 100644
--- a/net/wireless/scan.c
+++ b/net/wireless/scan.c
@@ -141,7 +141,7 @@ static int cmp_ies(u8 num, u8 *ies1, size_t len1, u8 *ies2, size_t len2)
 
 	if (!ie1 && !ie2)
 		return 0;
-	if (!ie1)
+	if (!ie1 || !ie2)
 		return -1;
 
 	r = memcmp(ie1 + 2, ie2 + 2, min(ie1[1], ie2[1]));
@@ -194,6 +194,8 @@ static bool is_mesh(struct cfg80211_bss *a,
 	ie = find_ie(WLAN_EID_MESH_CONFIG,
 		     a->information_elements,
 		     a->len_information_elements);
+	if (!ie)
+		return false;
 	if (ie[1] != IEEE80211_MESH_CONFIG_LEN)
 		return false;