Merge "Don\'t update checksum if data ptr is null."
am: 3b8e0b2cb6

* commit '3b8e0b2cb67d5cb5d04c84be4294668703f4c7c1':
  Don't update checksum if data ptr is null.

Change-Id: I206238e9b5d114c8e2ad17388ae020b5d09d0305