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Kernel: Make UserOrKernelBuffer R/W helpers return KResultOr<size_t>

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This makes error propagation less cumbersome (and also exposed some
places where we were not doing it.)
This commit is contained in:
Andreas Kling 2021-05-13 09:08:44 +02:00
parent 25a45e639a
commit e46343bf9a
15 changed files with 64 additions and 85 deletions
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7
Kernel/Console.cpp
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@ -57,14 +57,11 @@ Kernel::KResultOr<size_t> Console::write(FileDescription&, u64, const Kernel::Us
if (!size)
return 0;
ssize_t nread = data.read_buffered<256>(size, [&](const u8* bytes, size_t bytes_count) {
return data.read_buffered<256>(size, [&](u8 const* bytes, size_t bytes_count) {
for (size_t i = 0; i < bytes_count; i++)
put_char((char)bytes[i]);
return (ssize_t)bytes_count;
return bytes_count;
});
if (nread < 0)
return Kernel::KResult((ErrnoCode)-nread);
return (size_t)nread;
}
void Console::put_char(char ch)