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Kernel: Enable IRQs before sending commands to devices

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Without this fix, a very fast IRQ can preempt the enable_irq() call,
leaving that IRQ being unhandled.
This commit is contained in:
Liav A 2020-03-06 03:22:53 +02:00 • committed by Andreas Kling
parent f33fb151b4
commit a3fa40fc07
3 changed files with 19 additions and 8 deletions
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2
Kernel/Devices/PATAChannel.h
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@ -85,6 +85,8 @@ private:
bool ata_read_sectors(u32, u16, u8*, bool);
bool ata_write_sectors(u32, u16, const u8*, bool);
inline void prepare_for_irq();
// Data members
u8 m_channel_number { 0 }; // Channel number. 0 = master, 1 = slave
IOAddress m_io_base;