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Kernel: Make DoubleBuffer::try() return KResultOr

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This tidies up error propagation in a number of places.
This commit is contained in:
Andreas Kling 2021-09-07 13:46:11 +02:00
parent 213b8868af
commit 01993d0af3
8 changed files with 23 additions and 32 deletions
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6
Kernel/DoubleBuffer.cpp
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@ -17,13 +17,13 @@ inline void DoubleBuffer::compute_lockfree_metadata()
m_space_for_writing = m_capacity - m_write_buffer->size;
}
OwnPtr<DoubleBuffer> DoubleBuffer::try_create(size_t capacity)
KResultOr<NonnullOwnPtr<DoubleBuffer>> DoubleBuffer::try_create(size_t capacity)
{
auto storage = KBuffer::try_create_with_size(capacity * 2, Memory::Region::Access::ReadWrite, "DoubleBuffer");
if (!storage)
return {};
return ENOMEM;
return adopt_own_if_nonnull(new (nothrow) DoubleBuffer(capacity, storage.release_nonnull()));
return adopt_nonnull_own_or_enomem(new (nothrow) DoubleBuffer(capacity, storage.release_nonnull()));
}
DoubleBuffer::DoubleBuffer(size_t capacity, NonnullOwnPtr<KBuffer> storage)