diff --git a/services/core/java/com/android/server/audio/AudioDeviceInventory.java b/services/core/java/com/android/server/audio/AudioDeviceInventory.java
index f38b381..9bdc51e 100644
--- a/services/core/java/com/android/server/audio/AudioDeviceInventory.java
+++ b/services/core/java/com/android/server/audio/AudioDeviceInventory.java
@@ -987,9 +987,9 @@
                     }
                     if (di.mPeerDeviceAddress.equals("")) {
                         for (Pair<String, String> addr : addresses) {
-                            if (!addr.first.equals(di.mDeviceAddress)) {
-                                di.mPeerDeviceAddress = addr.first;
-                                di.mPeerIdentityDeviceAddress = addr.second;
+                            if (!di.mDeviceAddress.equals(addr.first)) {
+                                di.mPeerDeviceAddress = TextUtils.emptyIfNull(addr.first);
+                                di.mPeerIdentityDeviceAddress = TextUtils.emptyIfNull(addr.second);
                                 break;
                             }
                         }
@@ -1000,8 +1000,8 @@
                     }
                     if (di.mDeviceIdentityAddress.equals("")) {
                         for (Pair<String, String> addr : addresses) {
-                            if (addr.first.equals(di.mDeviceAddress)) {
-                                di.mDeviceIdentityAddress = addr.second;
+                            if (di.mDeviceAddress.equals(addr.first)) {
+                                di.mDeviceIdentityAddress = TextUtils.emptyIfNull(addr.second);
                                 break;
                             }
                         }
diff --git a/services/core/java/com/android/server/audio/BtHelper.java b/services/core/java/com/android/server/audio/BtHelper.java
index edeabdc..a649d34 100644
--- a/services/core/java/com/android/server/audio/BtHelper.java
+++ b/services/core/java/com/android/server/audio/BtHelper.java
@@ -1110,6 +1110,12 @@
         return mLeAudio.getGroupId(device);
     }
 
+    /**
+     * Returns all addresses and identity addresses for LE Audio devices a group.
+     * @param groupId The ID of the group from which to get addresses.
+     * @return A List of Pair(String main_address, String identity_address). Note that the
+     * addresses returned by BluetoothDevice can be null.
+     */
     /*package*/ List<Pair<String, String>> getLeAudioGroupAddresses(int groupId) {
         List<Pair<String, String>> addresses = new ArrayList<>();
         BluetoothAdapter adapter = BluetoothAdapter.getDefaultAdapter();