commit 7ba43785c9a7d1c3ad2afa458967f090276b21df
author Devin Moore <devinmoore@google.com> Tue Mar 04 21:42:54 2025 +0000
committer Devin Moore <devinmoore@google.com> Tue Mar 04 13:44:24 2025 -0800
tree 2f6560b396f6dccaa0c19de6002ab71981bb78f5
parent 6dfc509ab2e4b41af14d2cb041ada2a2d2532de5

Add comment explaining BpBinder::linkToDeath invalid operation

Test: none
Bug: none
Change-Id: I5e55018314079b895084d2ae06a197b9d9e54480

libs/binder/Binder.cpp

diff --git a/libs/binder/Binder.cpp b/libs/binder/Binder.cpp
index bc7ae37..9883eb2 100644
--- a/libs/binder/Binder.cpp
+++ b/libs/binder/Binder.cpp
@@ -445,6 +445,9 @@
     const sp<DeathRecipient>& /*recipient*/, void* /*cookie*/,
     uint32_t /*flags*/)
 {
+    // BBinder::linkToDeath is invalid because this process owns this binder.
+    // The DeathRecipient is called on BpBinders when the process owning the
+    // binder node dies.
     return INVALID_OPERATION;
 }