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Kernel/USB: Tidy up USB::Transfer construction

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This commit is contained in:
Andreas Kling 2021-09-06 00:18:32 +02:00
parent f4a9a0d561
commit 79fbad6df9
3 changed files with 5 additions and 9 deletions
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6
Kernel/Bus/USB/USBTransfer.cpp
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@ -9,15 +9,15 @@
namespace Kernel::USB {
RefPtr<Transfer> Transfer::try_create(Pipe& pipe, u16 len)
KResultOr<NonnullRefPtr<Transfer>> Transfer::try_create(Pipe& pipe, u16 len)
{
// Initialize data buffer for transfer
// This will definitely need to be refactored in the future, I doubt this will scale well...
auto data_buffer = MM.allocate_kernel_region(PAGE_SIZE, "USB Transfer Buffer", Memory::Region::Access::ReadWrite);
if (!data_buffer)
return {};
return ENOMEM;
return try_make_ref_counted<Transfer>(pipe, len, data_buffer.release_nonnull());
return adopt_nonnull_ref_or_enomem(new (nothrow) Transfer(pipe, len, data_buffer.release_nonnull()));
}
Transfer::Transfer(Pipe& pipe, u16 len, NonnullOwnPtr<Memory::Region> data_buffer)