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AK+Kernel: Handle allocation failures in Device::try_make_request

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This adds try_* methods to AK::DoublyLinkedList and updates the Device
class to use those to gracefully handle allocation failures.

Refs #6369.
This commit is contained in:
Gunnar Beutner 2022-11-01 10:17:26 +01:00 • committed by Linus Groh
commit ab8b043684
Notes: sideshowbarker 2024-07-17 20:33:50 +09:00
2 changed files with 28 additions and 7 deletions
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2
Kernel/Devices/Device.h
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@ -58,7 +58,7 @@ public:
auto request = TRY(adopt_nonnull_lock_ref_or_enomem(new (nothrow) AsyncRequestType(*this, forward<Args>(args)...)));
SpinlockLocker lock(m_requests_lock);
bool was_empty = m_requests.is_empty();
m_requests.append(request);
TRY(m_requests.try_append(request));
if (was_empty)
request->do_start(move(lock));
return request;