Fix to handle missing checks on error returned

Added missing return checks and converted
functions to void which doesn't return anything
other than zero.

Test: Review
Test: atest android.media.cts.DecoderTest
Bug:131183694

Change-Id: Iea7bb9959fffd7a0e4f345f86581a1328e04a38e
Merged-In: Iea7bb9959fffd7a0e4f345f86581a1328e04a38e
68 files changed