diff --git a/mt7921/main.c b/mt7921/main.c
index 162f5b70..26217874 100644
--- a/mt7921/main.c
+++ b/mt7921/main.c
@@ -1183,7 +1183,7 @@ static void mt7921_ipv6_addr_change(struct ieee80211_hw *hw,
 				    struct inet6_dev *idev)
 {
 	struct mt792x_vif *mvif = (struct mt792x_vif *)vif->drv_priv;
-	struct mt792x_dev *dev = mvif->phy->dev;
+	struct mt792x_dev *dev = mt792x_hw_dev(hw);
 	struct inet6_ifaddr *ifa;
 	struct in6_addr ns_addrs[IEEE80211_BSS_ARP_ADDR_LIST_LEN];
 	struct sk_buff *skb;
@@ -1206,6 +1206,9 @@ static void mt7921_ipv6_addr_change(struct ieee80211_hw *hw,
 		},
 	};
 
+	if (!mvif->phy)
+		return;
+
 	read_lock_bh(&idev->lock);
 	list_for_each_entry(ifa, &idev->addr_list, if_list) {
 		if (ifa->flags & IFA_F_TENTATIVE)