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Kernel: Make it possible for KBufferBuilder creation to fail

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This patch adds KBufferBuilder::try_create() and treats it like anything
else that can fail. And so, failure to allocate the initial internal
buffer of the builder will now propagate an ENOMEM to the caller. :^)
This commit is contained in:
Andreas Kling 2021-09-07 15:54:23 +02:00
parent be613b9ef6
commit 300402cc14
9 changed files with 30 additions and 13 deletions
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2
Kernel/FileSystem/Inode.cpp
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@ -47,7 +47,7 @@ void Inode::sync()
KResultOr<NonnullOwnPtr<KBuffer>> Inode::read_entire(OpenFileDescription* description) const
{
KBufferBuilder builder;
auto builder = TRY(KBufferBuilder::try_create());
u8 buffer[4096];
off_t offset = 0;