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Kernel: Don't retrieve possibly nonexistent APIC table

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Tim Schumacher 2021-10-06 01:39:17 +02:00 committed by Andreas Kling
parent c3a6d96988
commit 228a32effc
1 changed files with 4 additions and 1 deletions
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5
Kernel/Interrupts/InterruptManagement.cpp
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@ -114,7 +114,10 @@ UNMAP_AFTER_INIT PhysicalAddress InterruptManagement::search_for_madt()
auto rsdp = ACPI::StaticParsing::find_rsdp();
if (!rsdp.has_value())
return {};
return ACPI::StaticParsing::find_table(rsdp.value(), "APIC").value();
auto apic = ACPI::StaticParsing::find_table(rsdp.value(), "APIC");
if (!apic.has_value())
return {};
return apic.value();
}
UNMAP_AFTER_INIT InterruptManagement::InterruptManagement()