From: acevest <zhaoyanbai@126.com>
Date: Fri, 19 May 2023 16:40:13 +0000 (+0800)
Subject: fix sleep_on
X-Git-Url: http://zhaoyanbai.com/repos/%22http:/www.isc.org/icons/man.rndc.html?a=commitdiff_plain;h=11684c454495cc5ea8f4190af6c1e098eb2fdc78;p=kernel.git

fix sleep_on
---

diff --git a/kernel/wait.c b/kernel/wait.c
index e6bdb4e..a94aca8 100644
--- a/kernel/wait.c
+++ b/kernel/wait.c
@@ -49,11 +49,11 @@ void __end_wait(wait_queue_head_t *head, wait_queue_t *wq) {
 void sleep_on(wait_queue_head_t *head) {
     DECLARE_WAIT_QUEUE(wait, current);
 
-    current->state = TASK_WAIT;
-
     unsigned long flags;
     irq_save(flags);
 
+    current->state = TASK_WAIT;
+
     list_add_tail(&wait.task_list, &head->task_list);
 
     irq_restore(flags);