tree f7627197917025d07c8e64b4cdbf00d6ec4a85e2
parent 829633b4adb12780fb08af5ba3afc67c6759eeaa
author Jack Yu <jackyu@google.com> 1653020870 -0700
committer Jack Yu <jackyu@google.com> 1653114009 -0700

Fixed NPE

Fixed crash when two graceful tear down performed on the same
data network.

Bug: 233284182
Test: atest DataNetworkControllerTest + basic testing
Merged-In: I596c8174ab6f3ef595067b10b7e43598a79260dd
Change-Id: I596c8174ab6f3ef595067b10b7e43598a79260dd