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Kernel/USB: Use TRY() in the various USB classes

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This commit is contained in:
Andreas Kling 2021-09-05 16:01:50 +02:00
parent f8fba5f017
commit 29a9f80ecf
5 changed files with 39 additions and 117 deletions
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22
Kernel/Bus/USB/UHCI/UHCIRootHub.cpp
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@ -99,22 +99,14 @@ UHCIRootHub::UHCIRootHub(NonnullRefPtr<UHCIController> uhci_controller)
KResult UHCIRootHub::setup(Badge<UHCIController>)
{
auto hub_or_error = Hub::try_create_root_hub(m_uhci_controller, Device::DeviceSpeed::FullSpeed);
if (hub_or_error.is_error())
return hub_or_error.error();
m_hub = hub_or_error.release_value();
m_hub = TRY(Hub::try_create_root_hub(m_uhci_controller, Device::DeviceSpeed::FullSpeed));
// NOTE: The root hub will be on the default address at this point.
// The root hub must be the first device to be created, otherwise the HCD will intercept all default address transfers as though they're targeted at the root hub.
auto result = m_hub->enumerate_device();
if (result.is_error())
return result;
TRY(m_hub->enumerate_device());
// NOTE: The root hub is no longer on the default address.
result = m_hub->enumerate_and_power_on_hub();
if (result.is_error())
return result;
TRY(m_hub->enumerate_and_power_on_hub());
return KSuccess;
}
@ -219,9 +211,7 @@ KResultOr<size_t> UHCIRootHub::handle_control_transfer(Transfer& transfer)
return EINVAL;
auto feature_selector = (HubFeatureSelector)request.value;
auto result = m_uhci_controller->set_port_feature({}, port - 1, feature_selector);
if (result.is_error())
return result.error();
TRY(m_uhci_controller->set_port_feature({}, port - 1, feature_selector));
break;
}
case HubRequest::CLEAR_FEATURE: {
@ -246,9 +236,7 @@ KResultOr<size_t> UHCIRootHub::handle_control_transfer(Transfer& transfer)
return EINVAL;
auto feature_selector = (HubFeatureSelector)request.value;
auto result = m_uhci_controller->clear_port_feature({}, port - 1, feature_selector);
if (result.is_error())
return result.error();
TRY(m_uhci_controller->clear_port_feature({}, port - 1, feature_selector));
break;
}
default: