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Kernel: Make VirtIO::Queue construction fallible

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This commit is contained in:
Idan Horowitz 2022-01-21 11:51:02 +02:00 • committed by Andreas Kling
parent 17584d8a84
commit c3099382b8
3 changed files with 26 additions and 15 deletions
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5
Kernel/Bus/VirtIO/Device.cpp
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@ -327,9 +327,10 @@ bool Device::setup_queue(u16 queue_index)
u16 queue_notify_offset = config_read16(*m_common_cfg, COMMON_CFG_QUEUE_NOTIFY_OFF);
auto queue = make<Queue>(queue_size, queue_notify_offset);
if (queue->is_null())
auto queue_or_error = Queue::try_create(queue_size, queue_notify_offset);
if (queue_or_error.is_error())
return false;
auto queue = queue_or_error.release_value();
config_write64(*m_common_cfg, COMMON_CFG_QUEUE_DESC, queue->descriptor_area().get());
config_write64(*m_common_cfg, COMMON_CFG_QUEUE_DRIVER, queue->driver_area().get());