Merge "prevent nullptr dereference when calling unwanted" am: 03f03d7acf am: 07060e39fd

Original change: https://android-review.googlesource.com/c/platform/frameworks/opt/net/ethernet/+/1802269

Change-Id: Ica7a0ee1ae2d2c977fcc6caac3b53e157ff61281
tree: 9e21659c123cb35d557caaa38ed84cbb945f696f
  1. service-t/
  2. tests/