diff --git a/net/mac80211/spectmgmt.c b/net/mac80211/spectmgmt.c
index 880f4625775d..f5e4970869b6 100644
--- a/net/mac80211/spectmgmt.c
+++ b/net/mac80211/spectmgmt.c
@@ -111,8 +111,8 @@ validate_chandef_by_ht_vht_oper(struct ieee80211_sub_if_data *sdata,
 
 	switch (chan_width) {
 	case NL80211_CHAN_WIDTH_320:
-		WARN_ON(1);
-		break;
+		chandef->chan = NULL;
+		return;
 	case NL80211_CHAN_WIDTH_160:
 		vht_oper.chan_width = IEEE80211_VHT_CHANWIDTH_80MHZ;
 		vht_oper.center_freq_seg1_idx = vht_oper.center_freq_seg0_idx;