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

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Fixes a crash reported in #3990
This commit is contained in:
Tom 2020-11-29 17:09:14 -07:00 • committed by Andreas Kling
commit 3bda458735
Notes: sideshowbarker 2024-07-19 01:08:47 +09:00
2 changed files with 2 additions and 2 deletions
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2
Kernel/Lock.h
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@ -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 {

2
Kernel/Scheduler.cpp
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@ -311,7 +311,7 @@ bool Scheduler::donate_to(RefPtr<Thread>& beneficiary, const char* reason)
ASSERT(!proc.in_irq());
if (proc.in_critical() > 1) {
scheduler_data.m_pending_beneficiary = *beneficiary; // Save the beneficiary
scheduler_data.m_pending_beneficiary = beneficiary; // Save the beneficiary
scheduler_data.m_pending_donate_reason = reason;
proc.invoke_scheduler_async();
return false;