Kernel: Disable interrupts while modifying the PIC IMR

Author: https://github.com/awesomekling Commit: https://github.com/SerenityOS/serenity/commit/f6925775596
2019-12-14 13:41:45 +01:00 · 2019-12-14 13:41:45 +01:00 · f692577559 · 2024-07-19 10:51:45 +09:00
commit f692577559
parent 8de5a0be41
1 changed files with 2 additions and 0 deletions
--- a/Kernel/Arch/i386/PIC.cpp
+++ b/Kernel/Arch/i386/PIC.cpp
@ -21,6 +21,7 @@ namespace PIC {

 void disable(u8 irq)
 {
+    InterruptDisabler disabler;
    u8 imr;
    if (irq & 8) {
        imr = IO::in8(PIC1_CMD);
@ -35,6 +36,7 @@ void disable(u8 irq)

 void enable(u8 irq)
 {
+    InterruptDisabler disabler;
    u8 imr;
    if (irq & 8) {
        imr = IO::in8(PIC1_CMD);