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Kernel: Tidy up Memory::AddressSpace construction

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- Return KResultOr<T> in places
- Propagate errors
- Use TRY()
This commit is contained in:
Andreas Kling 2021-09-05 15:13:20 +02:00
parent 0cf65cf7ec
commit 83fed5b2de
6 changed files with 16 additions and 30 deletions
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10
Kernel/Memory/AddressSpace.cpp
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@ -15,14 +15,10 @@
namespace Kernel::Memory {
OwnPtr<AddressSpace> AddressSpace::try_create(AddressSpace const* parent)
KResultOr<NonnullOwnPtr<AddressSpace>> AddressSpace::try_create(AddressSpace const* parent)
{
auto page_directory = PageDirectory::try_create_for_userspace(parent ? &parent->page_directory().range_allocator() : nullptr);
if (!page_directory)
return {};
auto space = adopt_own_if_nonnull(new (nothrow) AddressSpace(page_directory.release_nonnull()));
if (!space)
return {};
auto page_directory = TRY(PageDirectory::try_create_for_userspace(parent ? &parent->page_directory().range_allocator() : nullptr));
auto space = TRY(adopt_nonnull_own_or_enomem(new (nothrow) AddressSpace(page_directory)));
space->page_directory().set_space({}, *space);
return space;
}