From c06011fa1d48d84ca0e99c2e99cceae4b0d0e973 Mon Sep 17 00:00:00 2001
From: Liio Chen <liio@qq.com>
Date: Tue, 27 Jan 2015 16:44:16 +0800
Subject: Update work_thread.c

Here wrong?
---
 nuttx/libc/wqueue/work_thread.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/nuttx/libc/wqueue/work_thread.c b/nuttx/libc/wqueue/work_thread.c
index b534ab46d..6ef8a874b 100644
--- a/nuttx/libc/wqueue/work_thread.c
+++ b/nuttx/libc/wqueue/work_thread.c
@@ -175,7 +175,8 @@ static void work_process(FAR struct wqueue_s *wqueue)
            * scheduled wakeup interval?
            */
 
-          remaining = elapsed - work->delay;
+          /* Here: elapsed < work->delay */
+          remaining = work->delay - elapsed;
           if (remaining < next)
             {
               /* Yes.. Then schedule to wake up when the work is ready */
-- 
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