From 126ce6428eabe6c6ac85fe6bfc8b27dabcc21bc4 Mon Sep 17 00:00:00 2001
From: luoyong1 <luoyong1@xiaomi.com>
Date: Fri, 19 Aug 2022 14:02:45 +0800
Subject: [PATCH] sched/semaphore: add the wdog judge before cancel

N/A

to avoid entering critical again in wd_cancel when wdog not actived. But when the wdog is actived, may add more judge
---
 sched/semaphore/sem_post.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/sched/semaphore/sem_post.c b/sched/semaphore/sem_post.c
index d5fd3842df..851c5f2f7f 100644
--- a/sched/semaphore/sem_post.c
+++ b/sched/semaphore/sem_post.c
@@ -151,7 +151,10 @@ int nxsem_post(FAR sem_t *sem)
 
               /* Stop the watchdog timer */
 
-              wd_cancel(&stcb->waitdog);
+              if (WDOG_ISACTIVE(&stcb->waitdog))
+                {
+                  wd_cancel(&stcb->waitdog);
+                }
 
               /* Restart the waiting task. */