From 8615e2c8e5a0964b871282582127e4a6aad763a5 Mon Sep 17 00:00:00 2001
From: Grissiom <chaos.proton@gmail.com>
Date: Tue, 14 Oct 2014 16:00:42 +0800
Subject: [PATCH] kernel/timer: change row_lvl to unsigned

Use signed int as array index is unsecure.
---
 src/timer.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/timer.c b/src/timer.c
index f71e40fcd6..ba2801530d 100644
--- a/src/timer.c
+++ b/src/timer.c
@@ -293,7 +293,7 @@ RTM_EXPORT(rt_timer_delete);
  */
 rt_err_t rt_timer_start(rt_timer_t timer)
 {
-    int row_lvl;
+    unsigned int row_lvl;
     rt_list_t *timer_list;
     register rt_base_t level;
     rt_list_t *row_head[RT_TIMER_SKIP_LIST_LEVEL];