Replace constructs with an if check to avoid crashes when nullptr happens am: db76ab3f

Original change: https://android-review.googlesource.com/c/platform/packages/modules/Bluetooth/+/2704998



Change-Id: I7a167ec1d47cbdc5c4484cb5b517bed1fcb33790
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>