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Kernel/Interrupts: Return boolean on whether we handled the interrupt

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If we are in a shared interrupt handler, the called handlers might
indicate it was not their interrupt, so we should not increment the
call counter of these handlers.
This commit is contained in:
Liav A 2021-06-05 09:00:18 +03:00 • committed by Andreas Kling
parent 7a6d5a7b8b
commit b91df26d4a
43 changed files with 125 additions and 71 deletions
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5
Kernel/Devices/USB/UHCIController.cpp
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@ -586,13 +586,13 @@ void UHCIController::spawn_port_proc()
});
}
void UHCIController::handle_irq(const RegisterState&)
bool UHCIController::handle_irq(const RegisterState&)
{
u32 status = read_usbsts();
// Shared IRQ. Not ours!
if (!status)
return;
return false;
if constexpr (UHCI_DEBUG) {
dbgln("UHCI: Interrupt happened!");
@ -601,6 +601,7 @@ void UHCIController::handle_irq(const RegisterState&)
// Write back USBSTS to clear bits
write_usbsts(status);
return true;
}
}