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Kernel: Fix spinlock unlocking in x86_64

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Spinlock unlock used a 64 bit write on 32 bit integer, overwriting
some random memory. This caused some really hard to find bugs
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Bananymous
2023-03-07 18:47:13 +02:00
parent df8811fc1a
commit ed18d86f08
1 changed files with 1 additions and 1 deletions
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kernel/arch/x86_64/SpinLock.S
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@@ -13,5 +13,5 @@ spinlock_lock_asm:
.global spinlock_unlock_asm .global spinlock_unlock_asm
spinlock_unlock_asm: spinlock_unlock_asm:
movq $0, (%rdi) movl $0, (%rdi)
ret ret