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Kernel: Disable interrupts while modifying the PIC IMR

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This commit is contained in:
Andreas Kling 2019-12-14 13:41:45 +01:00
parent 8de5a0be41
commit f692577559
1 changed files with 2 additions and 0 deletions
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2
Kernel/Arch/i386/PIC.cpp
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@ -21,6 +21,7 @@ namespace PIC {
void disable(u8 irq) void disable(u8 irq)
{ {
InterruptDisabler disabler;
u8 imr; u8 imr;
if (irq & 8) { if (irq & 8) {
imr = IO::in8(PIC1_CMD); imr = IO::in8(PIC1_CMD);
@ -35,6 +36,7 @@ void disable(u8 irq)
void enable(u8 irq) void enable(u8 irq)
{ {
InterruptDisabler disabler;
u8 imr; u8 imr;
if (irq & 8) { if (irq & 8) {
imr = IO::in8(PIC1_CMD); imr = IO::in8(PIC1_CMD);