Merge "Camera1: JpegProcessor: Do not lock until we have to" into nyc-mr1-dev
diff --git a/services/camera/libcameraservice/api1/client2/JpegProcessor.cpp b/services/camera/libcameraservice/api1/client2/JpegProcessor.cpp
index ffe96fc..d6d8dde 100644
--- a/services/camera/libcameraservice/api1/client2/JpegProcessor.cpp
+++ b/services/camera/libcameraservice/api1/client2/JpegProcessor.cpp
@@ -67,10 +67,15 @@
 }
 
 void JpegProcessor::onBufferReleased(const BufferInfo& bufferInfo) {
-    Mutex::Autolock l(mInputMutex);
     ALOGV("%s", __FUNCTION__);
-
     if (bufferInfo.mError) {
+        // Only lock in case of error, since we get one of these for each
+        // onFrameAvailable as well, and scheduling may delay this call late
+        // enough to run into later preview restart operations, for non-error
+        // cases.
+        // b/29524651
+        ALOGV("%s: JPEG buffer lost", __FUNCTION__);
+        Mutex::Autolock l(mInputMutex);
         mCaptureDone = true;
         mCaptureSuccess = false;
         mCaptureDoneSignal.signal();