Fix KernelMapper unlocking code.

2022-07-18 11:29:11 +02:00
parent e60321d4a0
commit bf82387f3b
1 changed files with 1 additions and 1 deletions
--- a/src/arch/x86_64/rmm.rs
+++ b/src/arch/x86_64/rmm.rs
@@ -321,7 +321,7 @@ impl core::ops::Deref for KernelMapper {
 }
 impl Drop for KernelMapper {
    fn drop(&mut self) {
-        if LOCK_COUNT.fetch_sub(1, Ordering::Relaxed) == 0 {
+        if LOCK_COUNT.fetch_sub(1, Ordering::Relaxed) == 1 {
            LOCK_OWNER.store(NO_PROCESSOR, Ordering::Release);
        }
        atomic::compiler_fence(Ordering::Release);