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Kernel: Make File::write() and File::read() return KResultOr<size_t>

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Instead of returning a ssize_t where negative values mean error,
we now return KResultOr<size_t> and use the error state to report
errors exclusively.
This commit is contained in:
Andreas Kling 2020-08-04 18:02:23 +02:00
commit 7a3ab6c517
Notes: sideshowbarker 2024-07-19 04:18:56 +09:00
58 changed files with 223 additions and 229 deletions
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4
Kernel/Devices/PS2MouseDevice.cpp
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@ -324,7 +324,7 @@ bool PS2MouseDevice::can_read(const FileDescription&, size_t) const
return !m_queue.is_empty();
}
ssize_t PS2MouseDevice::read(FileDescription&, size_t, u8* buffer, ssize_t size)
KResultOr<size_t> PS2MouseDevice::read(FileDescription&, size_t, u8* buffer, size_t size)
{
ASSERT(size > 0);
size_t nread = 0;
@ -344,7 +344,7 @@ ssize_t PS2MouseDevice::read(FileDescription&, size_t, u8* buffer, ssize_t size)
return nread;
}
ssize_t PS2MouseDevice::write(FileDescription&, size_t, const u8*, ssize_t)
KResultOr<size_t> PS2MouseDevice::write(FileDescription&, size_t, const u8*, size_t)
{
return 0;
}