Kernel: Lock should keep a reference to whoever holds the lock

Fixes a crash reported in #3990
Author: https://github.com/tomuta Commit: 3bda458735 Pull-request: https://github.com/SerenityOS/serenity/pull/4113
2025-09-20 00:08:55 +00:00 · 2020-11-29 17:09:14 -07:00 · 2020-11-29 17:09:14 -07:00 · 3bda458735 · 2024-07-19 01:08:47 +09:00
commit 3bda458735
parent 046d6855f5
2 changed files with 2 additions and 2 deletions
--- a/Kernel/Lock.h
+++ b/Kernel/Lock.h
@ -72,7 +72,7 @@ private:
    // the lock is unlocked, it just means we don't know which threads hold it.
    // When locked exclusively, this is always the one thread that holds the
    // lock.
-    Thread* m_holder { nullptr };
+    RefPtr<Thread> m_holder;
 };

 class Locker {