diff options
Diffstat (limited to 'Kernel/Devices/SB16.cpp')
| -rw-r--r-- | Kernel/Devices/SB16.cpp | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/Kernel/Devices/SB16.cpp b/Kernel/Devices/SB16.cpp index 8d7406f39b..eb6d15b993 100644 --- a/Kernel/Devices/SB16.cpp +++ b/Kernel/Devices/SB16.cpp @@ -177,7 +177,7 @@ bool SB16::can_read(const FileDescription&, size_t) const return false; } -KResultOr<size_t> SB16::read(FileDescription&, size_t, u8*, size_t) +KResultOr<size_t> SB16::read(FileDescription&, size_t, UserOrKernelBuffer&, size_t) { return 0; } @@ -231,7 +231,7 @@ void SB16::wait_for_irq() disable_irq(); } -KResultOr<size_t> SB16::write(FileDescription&, size_t, const u8* data, size_t length) +KResultOr<size_t> SB16::write(FileDescription&, size_t, const UserOrKernelBuffer& data, size_t length) { if (!m_dma_region) { auto page = MM.allocate_supervisor_physical_page(); @@ -252,7 +252,8 @@ KResultOr<size_t> SB16::write(FileDescription&, size_t, const u8* data, size_t l const int sample_rate = 44100; set_sample_rate(sample_rate); - memcpy(m_dma_region->vaddr().as_ptr(), data, length); + if (!data.read(m_dma_region->vaddr().as_ptr(), length)) + return KResult(-EFAULT); dma_start(length); // 16-bit single-cycle output. |