Fix unreleased mutex in ToneGenerator stopTone()

Commit 09108ade introduced a regression by not releasing
the ToneGenerator mutex before exiting in case of error.

Bug: 8852855
Change-Id: I8ba2755b218842e2034ed8dbd54b18bf2a5fc571

parent e743d2ec

media/libmedia/ToneGenerator.cpp

+1 −0

Original line number	Diff line number	Diff line
		@@ -1012,6 +1012,7 @@ void ToneGenerator::stopTone() {
		if (lStatus == NO_ERROR) {
		// If the tone was restarted exit now before calling clearWaveGens();
		if (mState != TONE_INIT) {
		mLock.unlock();
		return;
		}
		ALOGV("track stop complete, time %d", (unsigned int)(systemTime()/1000000));