tree 53c3ebaf84b98802b54d67e9e0fd2f7f05eebdc1
parent dcbd16339df74edeadbdfe10e1f89c9e45b40828
author Jeffrey Huang <jeffreyhuang@google.com> 1615490029 -0800
committer Jeffrey Huang <jeffreyhuang@google.com> 1615508287 -0800

Fix an NPE in BatteryService

mCallback is possible to be null. Avoid registering null callbacks.

Bug: 175184519
Test: TH
Change-Id: Ic382d268f40a8ea31aaeedc7a85b6dc9b4e6c210