From 24146851352c5f73c89154328d0fbc9b0cf796d1 Mon Sep 17 00:00:00 2001
From: ChiChen <2531693734@qq.com>
Date: Thu, 24 Aug 2023 21:46:45 +0800
Subject: [PATCH] =?UTF-8?q?=E4=BC=98=E5=8C=96=E4=BA=86=E4=BB=A3=E7=A0=81?=
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---
 kernel/src/libs/rwlock.rs | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

diff --git a/kernel/src/libs/rwlock.rs b/kernel/src/libs/rwlock.rs
index d6276a977..ad3edd32e 100644
--- a/kernel/src/libs/rwlock.rs
+++ b/kernel/src/libs/rwlock.rs
@@ -520,10 +520,7 @@ impl<'rwlock, T> Drop for RwLockWriteGuard<'rwlock, T> {
         self.inner
             .lock
             .fetch_and(!(WRITER | UPGRADED), Ordering::Release);
-        if let Some(_) = self.irq_guard {
-            // 自动 drop 包含的 irq_guard，恢复中断
-            self.irq_guard = None;
-        }
+        self.irq_guard.take();
         ProcessManager::current_pcb().preempt_enable();
     }
 }