diff --git a/core/java/android/bluetooth/BluetoothAdapter.java b/core/java/android/bluetooth/BluetoothAdapter.java
index 4c86578..9390bcd 100644
--- a/core/java/android/bluetooth/BluetoothAdapter.java
+++ b/core/java/android/bluetooth/BluetoothAdapter.java
@@ -2045,12 +2045,15 @@
             public void onBluetoothServiceDown() {
                 if (VDBG) Log.d(TAG, "onBluetoothServiceDown: " + mService);
 
-                mServiceLock.writeLock().lock();
-                mService = null;
-                if (mLeScanClients != null) mLeScanClients.clear();
-                if (sBluetoothLeAdvertiser != null) sBluetoothLeAdvertiser.cleanup();
-                if (sBluetoothLeScanner != null) sBluetoothLeScanner.cleanup();
-                mServiceLock.writeLock().unlock();
+                try {
+                    mServiceLock.writeLock().lock();
+                    mService = null;
+                    if (mLeScanClients != null) mLeScanClients.clear();
+                    if (sBluetoothLeAdvertiser != null) sBluetoothLeAdvertiser.cleanup();
+                    if (sBluetoothLeScanner != null) sBluetoothLeScanner.cleanup();
+                } finally {
+                    mServiceLock.writeLock().unlock();
+                }
 
                 synchronized (mProxyServiceStateCallbacks) {
                     for (IBluetoothManagerCallback cb : mProxyServiceStateCallbacks ){
diff --git a/services/core/java/com/android/server/BluetoothManagerService.java b/services/core/java/com/android/server/BluetoothManagerService.java
index f30a126..1f88be5 100644
--- a/services/core/java/com/android/server/BluetoothManagerService.java
+++ b/services/core/java/com/android/server/BluetoothManagerService.java
@@ -1457,14 +1457,17 @@
                                                     BluetoothAdapter.STATE_OFF);
                         sendBluetoothServiceDownCallback();
 
-                        mBluetoothLock.writeLock().lock();
-                        if (mBluetooth != null) {
-                            mBluetooth = null;
-                            // Unbind
-                            mContext.unbindService(mConnection);
+                        try {
+                            mBluetoothLock.writeLock().lock();
+                            if (mBluetooth != null) {
+                                mBluetooth = null;
+                                // Unbind
+                                mContext.unbindService(mConnection);
+                            }
+                            mBluetoothGatt = null;
+                        } finally {
+                            mBluetoothLock.writeLock().unlock();
                         }
-                        mBluetoothGatt = null;
-                        mBluetoothLock.writeLock().unlock();
 
                         SystemClock.sleep(100);
 
@@ -1765,14 +1768,17 @@
 
         sendBluetoothServiceDownCallback();
 
-        mBluetoothLock.writeLock().lock();
-        if (mBluetooth != null) {
-            mBluetooth = null;
-            // Unbind
-            mContext.unbindService(mConnection);
+        try {
+            mBluetoothLock.writeLock().lock();
+            if (mBluetooth != null) {
+                mBluetooth = null;
+                // Unbind
+                mContext.unbindService(mConnection);
+            }
+            mBluetoothGatt = null;
+        } finally {
+            mBluetoothLock.writeLock().unlock();
         }
-        mBluetoothGatt = null;
-        mBluetoothLock.writeLock().unlock();
 
         mHandler.removeMessages(MESSAGE_BLUETOOTH_STATE_CHANGE);
         mState = BluetoothAdapter.STATE_OFF;