Fix potential NULL dereference in Visualizer effect am: 0c39abc483
am: 18b2de20a7

Change-Id: I131f617ee43a13dc8d50a1aa03eb10076db9f0b5
tree: 2269ad538196eeb72e75d5a9dc3193f1a4a9f184
  1. hal/
  2. legacy/
  3. visualizer/
  4. voice_processing/
  5. Android.mk