diff --git a/mt7915/init.c b/mt7915/init.c
index 0505e6d3..a1bdcb2c 100644
--- a/mt7915/init.c
+++ b/mt7915/init.c
@@ -1340,14 +1340,19 @@ int mt7915_register_device(struct mt7915_dev *dev)
 
 	ret = mt7915_init_debugfs(&dev->phy);
 	if (ret)
-		goto unreg_thermal;
+		goto unreg_ext_phy;
 
 	ret = mt7915_coredump_register(dev);
 	if (ret)
-		goto unreg_thermal;
+		goto unreg_ext_phy;
 
 	return 0;
 
+unreg_ext_phy:
+	if (phy2) {
+		mt7915_unregister_ext_phy(dev);
+		phy2 = NULL;
+	}
 unreg_thermal:
 	mt7915_unregister_thermal(&dev->phy);
 unreg_dev: