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Kernel: Make copy_{from,to}_user() return KResult and use TRY()
This makes EFAULT propagation flow much more naturally. :^)
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57 changed files with 318 additions and 551 deletions
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@ -17,8 +17,7 @@ KResultOr<FlatPtr> Process::sys$gethostname(Userspace<char*> buffer, size_t size
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return hostname().with_shared([&](const auto& name) -> KResultOr<FlatPtr> {
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if (size < (name.length() + 1))
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return ENAMETOOLONG;
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if (!copy_to_user(buffer, name.characters(), name.length() + 1))
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return EFAULT;
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TRY(copy_to_user(buffer, name.characters(), name.length() + 1));
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return 0;
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});
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}
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