From 1e2bb8ea7a6f1b1c223463ad601132716624fb11 Mon Sep 17 00:00:00 2001
From: Meco Man <920369182@qq.com>
Date: Sun, 22 Oct 2023 11:54:54 -0400
Subject: [PATCH] [kservice] use C89 format to avoid warning

---
 src/kservice.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/kservice.c b/src/kservice.c
index b8ea8b2ecd..79ba8a28b3 100644
--- a/src/kservice.c
+++ b/src/kservice.c
@@ -142,10 +142,12 @@ static struct _errno_str_t  rt_errno_strs[] =
  */
 const char *rt_strerror(rt_err_t error)
 {
+    int i = 0;
+
     if (error < 0)
         error = -error;
 
-    for (int i = 0; i < sizeof(rt_errno_strs) / sizeof(rt_errno_strs[0]); i++)
+    for (i = 0; i < sizeof(rt_errno_strs) / sizeof(rt_errno_strs[0]); i++)
     {
         if (rt_errno_strs[i].error == error)
             return rt_errno_strs[i].str;