Clean up error handling in createTrack and openRecord
Outside callers now use initCheck() to determine whether a TrackBase
has been created successfully, instead of relying on internal knowledge.
Previously, callers needed to know that a TrackBase was only valid if it's
getCbk() != 0. For a Track (playback), they needed to know to also check
the track's name (track index). Now, outsiders can just call initCheck().
Other changes:
- Return a 0 reference if track creation fails
- Remove a dead line of code in AudioFlinger::openRecord
Change-Id: If374924a3f6fd27906f625aa83dd0a1e3f506e00
5 files changed