commit 87e9f2bebe0efd1821cdf08a1ca3810409eaf9a5
author Jeff Pu <jeffpu@google.com> Wed May 03 17:59:21 2023 +0000
committer Jeff Pu <jeffpu@google.com> Fri May 05 14:14:57 2023 +0000
tree 4db0ee5a1d44124c35dedef2879a4cb3419947b7
parent 3db9f6880a5d806b9c15b8fbaf10b95682a60570

Close the session if Fingerprint servers die

by registering the death notification of the associated binder.
Bug: 273807765
Test: adb shell stop;adb shell start

Change-Id: Ifc60e68fdbf986a355f828a7fc11f2aecee4cbea

biometrics/fingerprint/aidl/default/Fingerprint.cpp

diff --git a/biometrics/fingerprint/aidl/default/Fingerprint.cpp b/biometrics/fingerprint/aidl/default/Fingerprint.cpp
index 7808a13..f00a49d 100644
--- a/biometrics/fingerprint/aidl/default/Fingerprint.cpp
+++ b/biometrics/fingerprint/aidl/default/Fingerprint.cpp
@@ -103,6 +103,8 @@
     mSession = SharedRefBase::make<Session>(sensorId, userId, cb, mEngine.get(), &mWorker);
     *out = mSession;
 
+    mSession->linkToDeath(cb->asBinder().get());
+
     LOG(INFO) << "createSession: sensorId:" << sensorId << " userId:" << userId;
     return ndk::ScopedAStatus::ok();
 }