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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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6
Kernel/TTY/SlavePTY.cpp
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@ -46,12 +46,12 @@ void SlavePTY::echo(u8 ch)
void SlavePTY::on_master_write(const UserOrKernelBuffer& buffer, ssize_t size)
{
ssize_t nread = buffer.read_buffered<128>(size, [&](const u8* data, size_t data_size) {
auto result = buffer.read_buffered<128>(size, [&](u8 const* data, size_t data_size) {
for (size_t i = 0; i < data_size; ++i)
emit(data[i], false);
return (ssize_t)data_size;
return data_size;
});
if (nread > 0)
if (!result.is_error())
evaluate_block_conditions();
}