tree cd449d84619f62bc7e0632650200b28c61c72d48
parent 9ed4b4147876a01aec4599e21d6df9a5a5475151
author Tao Bao <tbao@google.com> 1529351346 -0700
committer Tao Bao <tbao@google.com> 1529352043 -0700

updater: Defer the creation of the new data writer.

This avoids leaving the created new data writer thread unjoined, in the
presence of transfer list parsing errors, or the early exit case on
`total_blocks == 0`.

Also fix a minor issue when dumping the errno on pthread_create error
(pthread_create returns the error number, as opposed to setting errno).

Test: Run recovery_component_test on marlin.
Change-Id: Icfac27fef0c64736eb8c76264da73c223b4960cb