diff --git a/core/java/android/hardware/camera2/CaptureFailure.java b/core/java/android/hardware/camera2/CaptureFailure.java
index 20ca4a338f01b..032ed7e4db628 100644
--- a/core/java/android/hardware/camera2/CaptureFailure.java
+++ b/core/java/android/hardware/camera2/CaptureFailure.java
@@ -59,7 +59,7 @@ public class CaptureFailure {
 
     private final CaptureRequest mRequest;
     private final int mReason;
-    private final boolean mDropped;
+    private final boolean mWasImageCaptured;
     private final int mSequenceId;
     private final long mFrameNumber;
     private final String mErrorPhysicalCameraId;
@@ -68,10 +68,11 @@ public class CaptureFailure {
      * @hide
      */
     public CaptureFailure(CaptureRequest request, int reason,
-            boolean dropped, int sequenceId, long frameNumber, String errorPhysicalCameraId) {
+            boolean wasImageCaptured, int sequenceId, long frameNumber,
+            String errorPhysicalCameraId) {
         mRequest = request;
         mReason = reason;
-        mDropped = dropped;
+        mWasImageCaptured = wasImageCaptured;
         mSequenceId = sequenceId;
         mFrameNumber = frameNumber;
         mErrorPhysicalCameraId = errorPhysicalCameraId;
@@ -141,7 +142,7 @@ public class CaptureFailure {
      * @return boolean True if the image was captured, false otherwise.
      */
     public boolean wasImageCaptured() {
-        return !mDropped;
+        return mWasImageCaptured;
     }
 
     /**
diff --git a/core/java/android/hardware/camera2/impl/CameraAdvancedExtensionSessionImpl.java b/core/java/android/hardware/camera2/impl/CameraAdvancedExtensionSessionImpl.java
index 8da6551f3d151..b8443fb6d14b9 100644
--- a/core/java/android/hardware/camera2/impl/CameraAdvancedExtensionSessionImpl.java
+++ b/core/java/android/hardware/camera2/impl/CameraAdvancedExtensionSessionImpl.java
@@ -873,21 +873,19 @@ public final class CameraAdvancedExtensionSessionImpl extends CameraExtensionSes
         @Override
         public int submitBurst(List<Request> requests, IRequestCallback callback) {
             int seqId = -1;
-            synchronized (mInterfaceLock) {
-                try {
-                    CaptureCallbackHandler captureCallback = new CaptureCallbackHandler(callback);
-                    ArrayList<CaptureRequest> captureRequests = new ArrayList<>();
-                    for (Request request : requests) {
-                        captureRequests.add(initializeCaptureRequest(mCameraDevice, request,
-                                mCameraConfigMap));
-                    }
-                    seqId = mCaptureSession.captureBurstRequests(captureRequests,
-                            new CameraExtensionUtils.HandlerExecutor(mHandler), captureCallback);
-                } catch (CameraAccessException e) {
-                    Log.e(TAG, "Failed to submit capture requests!");
-                } catch (IllegalStateException e) {
-                    Log.e(TAG, "Capture session closed!");
+            try {
+                CaptureCallbackHandler captureCallback = new CaptureCallbackHandler(callback);
+                ArrayList<CaptureRequest> captureRequests = new ArrayList<>();
+                for (Request request : requests) {
+                    captureRequests.add(initializeCaptureRequest(mCameraDevice, request,
+                            mCameraConfigMap));
                 }
+                seqId = mCaptureSession.captureBurstRequests(captureRequests,
+                        new CameraExtensionUtils.HandlerExecutor(mHandler), captureCallback);
+            } catch (CameraAccessException e) {
+                Log.e(TAG, "Failed to submit capture requests!");
+            } catch (IllegalStateException e) {
+                Log.e(TAG, "Capture session closed!");
             }
 
             return seqId;
@@ -896,18 +894,16 @@ public final class CameraAdvancedExtensionSessionImpl extends CameraExtensionSes
         @Override
         public int setRepeating(Request request, IRequestCallback callback) {
             int seqId = -1;
-            synchronized (mInterfaceLock) {
-                try {
-                    CaptureRequest repeatingRequest = initializeCaptureRequest(mCameraDevice,
-                                request, mCameraConfigMap);
-                    CaptureCallbackHandler captureCallback = new CaptureCallbackHandler(callback);
-                    seqId = mCaptureSession.setSingleRepeatingRequest(repeatingRequest,
-                            new CameraExtensionUtils.HandlerExecutor(mHandler), captureCallback);
-                } catch (CameraAccessException e) {
-                    Log.e(TAG, "Failed to enable repeating request!");
-                } catch (IllegalStateException e) {
-                    Log.e(TAG, "Capture session closed!");
-                }
+            try {
+                CaptureRequest repeatingRequest = initializeCaptureRequest(mCameraDevice,
+                            request, mCameraConfigMap);
+                CaptureCallbackHandler captureCallback = new CaptureCallbackHandler(callback);
+                seqId = mCaptureSession.setSingleRepeatingRequest(repeatingRequest,
+                        new CameraExtensionUtils.HandlerExecutor(mHandler), captureCallback);
+            } catch (CameraAccessException e) {
+                Log.e(TAG, "Failed to enable repeating request!");
+            } catch (IllegalStateException e) {
+                Log.e(TAG, "Capture session closed!");
             }
 
             return seqId;
@@ -915,27 +911,23 @@ public final class CameraAdvancedExtensionSessionImpl extends CameraExtensionSes
 
         @Override
         public void abortCaptures() {
-            synchronized (mInterfaceLock) {
-                try {
-                    mCaptureSession.abortCaptures();
-                } catch (CameraAccessException e) {
-                    Log.e(TAG, "Failed during capture abort!");
-                } catch (IllegalStateException e) {
-                    Log.e(TAG, "Capture session closed!");
-                }
+            try {
+                mCaptureSession.abortCaptures();
+            } catch (CameraAccessException e) {
+                Log.e(TAG, "Failed during capture abort!");
+            } catch (IllegalStateException e) {
+                Log.e(TAG, "Capture session closed!");
             }
         }
 
         @Override
         public void stopRepeating() {
-            synchronized (mInterfaceLock) {
-                try {
-                    mCaptureSession.stopRepeating();
-                } catch (CameraAccessException e) {
-                    Log.e(TAG, "Failed during repeating capture stop!");
-                } catch (IllegalStateException e) {
-                    Log.e(TAG, "Capture session closed!");
-                }
+            try {
+                mCaptureSession.stopRepeating();
+            } catch (CameraAccessException e) {
+                Log.e(TAG, "Failed during repeating capture stop!");
+            } catch (IllegalStateException e) {
+                Log.e(TAG, "Capture session closed!");
             }
         }
     }
diff --git a/core/java/android/hardware/camera2/impl/CameraDeviceImpl.java b/core/java/android/hardware/camera2/impl/CameraDeviceImpl.java
index 4708f3e0664fc..88649392c23cd 100644
--- a/core/java/android/hardware/camera2/impl/CameraDeviceImpl.java
+++ b/core/java/android/hardware/camera2/impl/CameraDeviceImpl.java
@@ -1867,7 +1867,7 @@ public class CameraDeviceImpl extends CameraDevice
             final CaptureFailure failure = new CaptureFailure(
                 request,
                 reason,
-                /*dropped*/ mayHaveBuffers,
+                mayHaveBuffers,
                 requestId,
                 frameNumber,
                 errorPhysicalCameraId);
diff --git a/services/core/java/com/android/server/location/provider/StationaryThrottlingLocationProvider.java b/services/core/java/com/android/server/location/provider/StationaryThrottlingLocationProvider.java
index cc51cea05160b..22a675ad39ab6 100644
--- a/services/core/java/com/android/server/location/provider/StationaryThrottlingLocationProvider.java
+++ b/services/core/java/com/android/server/location/provider/StationaryThrottlingLocationProvider.java
@@ -105,15 +105,20 @@ public final class StationaryThrottlingLocationProvider extends DelegateLocation
 
         synchronized (mLock) {
             mDeviceIdleHelper.addListener(this);
-            onDeviceIdleChanged(mDeviceIdleHelper.isDeviceIdle());
+            mDeviceIdle = mDeviceIdleHelper.isDeviceIdle();
+            mDeviceStationaryHelper.addListener(this);
+            mDeviceStationary = false;
+            mDeviceStationaryRealtimeMs = Long.MIN_VALUE;
+
+            onThrottlingChangedLocked(false);
         }
     }
 
     @Override
     protected void onStop() {
         synchronized (mLock) {
+            mDeviceStationaryHelper.removeListener(this);
             mDeviceIdleHelper.removeListener(this);
-            onDeviceIdleChanged(false);
 
             mIncomingRequest = ProviderRequest.EMPTY_REQUEST;
             mOutgoingRequest = ProviderRequest.EMPTY_REQUEST;
@@ -146,27 +151,13 @@ public final class StationaryThrottlingLocationProvider extends DelegateLocation
             }
 
             mDeviceIdle = deviceIdle;
-
-            if (deviceIdle) {
-                // device stationary helper will deliver an immediate listener update
-                mDeviceStationaryHelper.addListener(this);
-            } else {
-                mDeviceStationaryHelper.removeListener(this);
-                mDeviceStationary = false;
-                mDeviceStationaryRealtimeMs = Long.MIN_VALUE;
-                onThrottlingChangedLocked(false);
-            }
+            onThrottlingChangedLocked(false);
         }
     }
 
     @Override
     public void onDeviceStationaryChanged(boolean deviceStationary) {
         synchronized (mLock) {
-            if (!mDeviceIdle) {
-                // stationary detection is only registered while idle - ignore late notifications
-                return;
-            }
-
             if (mDeviceStationary == deviceStationary) {
                 return;
             }