Merge "audioflinger: fix mmap rerouting on track invalidation" into tm-qpr-dev

void AudioFlinger::MmapThread::checkInvalidTracks_l()

{

    sp<MmapStreamCallback> callback;

    for (const sp<MmapTrack> &track : mActiveTracks) {

        if (track->isInvalid()) {

            sp<MmapStreamCallback> callback = mCallback.promote();

            if (callback != 0) {

                mLock.unlock();

                callback->onTearDown(track->portId());

                mLock.lock();

            } else if (mNoCallbackWarningCount < kMaxNoCallbackWarnings) {

                ALOGW("Could not notify MMAP stream tear down: no onTearDown callback!");

            callback = mCallback.promote();

            if (callback == nullptr &&  mNoCallbackWarningCount < kMaxNoCallbackWarnings) {

                ALOGW("Could not notify MMAP stream tear down: no onRoutingChanged callback!");

                mNoCallbackWarningCount++;

            }

            break;

        }

    }

    if (callback != 0) {

        mLock.unlock();

        callback->onRoutingChanged(AUDIO_PORT_HANDLE_NONE);

        mLock.lock();

    }

}

void AudioFlinger::MmapThread::dumpInternals_l(int fd, const Vector<String16>& args __unused)