Merge "adb: check return value of register_socket_transport."
am: 3d981c87c9

* commit '3d981c87c929ec4946ce53d2aaa3503c86886eb1':
  adb: check return value of register_socket_transport.

Change-Id: I3b0983e1ccda4c0c29d1f971ba3402ec384ef2a8