tree 8766aa2794e4e36e55742786f4b9c05b4bafb66d
parent 669fe0b1f9302ac9aa17e049786536ec0492592f
author Wei Wang <wvw@google.com> 1550691554 -0800
committer Wei Wang <wvw@google.com> 1550700640 -0800

Improve the comments of Thermal HAL 2.0 API

Make sure (un)register API failed with nullptr

Test: Build
Test: VtsHalThermalV2_0TargetTest
Change-Id: I42a87fde85a38f77faa4d07f29ed3a78501a0dca