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Kernel: Make File::write() and File::read() return KResultOr<size_t>
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.
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58feebeed2
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7a3ab6c517
58 changed files with 223 additions and 229 deletions
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@ -172,7 +172,7 @@ bool SB16::can_read(const FileDescription&, size_t) const
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return false;
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}
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ssize_t SB16::read(FileDescription&, size_t, u8*, ssize_t)
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KResultOr<size_t> SB16::read(FileDescription&, size_t, u8*, size_t)
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{
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return 0;
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}
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@ -226,7 +226,7 @@ void SB16::wait_for_irq()
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disable_irq();
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}
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ssize_t SB16::write(FileDescription&, size_t, const u8* data, ssize_t length)
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KResultOr<size_t> SB16::write(FileDescription&, size_t, const u8* data, size_t length)
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{
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if (!m_dma_region) {
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auto page = MM.allocate_supervisor_physical_page();
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