From 90a44f8cbf42d7f4e035f2ab770ae360703c1c6c Mon Sep 17 00:00:00 2001
From: Rbb666 <zhangbingru@rt-thread.com>
Date: Fri, 7 Nov 2025 14:52:23 +0800
Subject: [PATCH] utest:Fix signal info node leak in signal_tc when running
 multiple times.

---
 src/utest/signal_tc.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/utest/signal_tc.c b/src/utest/signal_tc.c
index c69350e41e5..93d7865671b 100644
--- a/src/utest/signal_tc.c
+++ b/src/utest/signal_tc.c
@@ -84,6 +84,8 @@ static void rt_signal_unmask_test(void)
         uassert_int_equal(rt_thread_kill(rt_thread_self(), signo), RT_EOK);
         rt_thread_mdelay(1);
         uassert_int_not_equal(recive_sig, signo);
+        /* unmask to allow pending signal to be delivered and released */
+        rt_signal_unmask(signo);
     }
 
     return;