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Kernel+LibC: Turn errno codes into a strongly typed enum
..and allow implicit creation of KResult and KResultOr from ErrnoCode. This means that kernel functions that return those types can finally do "return EINVAL;" and it will just work. There's a handful of functions that still deal with signed integers that should be converted to return KResults.
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48 changed files with 591 additions and 506 deletions
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@ -386,7 +386,7 @@ KResultOr<size_t> KeyboardDevice::read(FileDescription&, size_t, UserOrKernelBuf
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return (ssize_t)data_bytes;
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});
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if (n < 0)
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return KResult(n);
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return KResult((ErrnoCode)-n);
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ASSERT((size_t)n == sizeof(Event));
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nread += sizeof(Event);
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