tree b4917494c7a99ff9d4ed9552d2a5f205931593ca
parent 65842db06c2d77e53cc5ac61692160d844cc7d0a
author Eric Laurent <elaurent@google.com> 1431107403 -0700
committer Eric Laurent <elaurent@google.com> 1439922337 -0700

DO NOT MERGE - audio flinger: fix fuzz test crash

Clear output stream pointer in duplicating thread
when the main output to which it is attached is closed.

Also do not forward master mute and volume commands to
duplicating threads as this is not applicable.

Also fix logic in AudioFlinger::primaryPlaybackThread_l()
that could accidentally return a duplicating thread.
This never happens because the primary thread is always
first in the list.

Bug: 20731946.
Change-Id: Ic8869699836920351b23d09544c50a258d3fb585
(cherry picked from commit f6870aefc5e31d4220f3778c4e79ff34a61f48ad)