From feec0f67bb460358e4058620690e45b4e6ed8535 Mon Sep 17 00:00:00 2001
From: Giovanni Di Sirio <gdisirio@gmail.com>
Date: Sun, 26 May 2019 08:17:05 +0000
Subject: Fixed bug #1031.

git-svn-id: svn://svn.code.sf.net/p/chibios/svn/branches/stable_19.1.x@12815 27425a3e-05d8-49a3-a47f-9c15f0e5edd8
---
 os/rt/include/chvt.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'os')

diff --git a/os/rt/include/chvt.h b/os/rt/include/chvt.h
index 70c3182e6..f1bb4d9f2 100644
--- a/os/rt/include/chvt.h
+++ b/os/rt/include/chvt.h
@@ -450,7 +450,7 @@ static inline void chVTDoTickI(void) {
   ch.vtlist.next->delta -= nowdelta;
 
   /* Recalculating the next alarm time.*/
-  delta = chTimeDiffX(now, chTimeAddX(ch.vtlist.lasttime, vtp->delta));
+  delta = vtp->delta - chTimeDiffX(ch.vtlist.lasttime, now);
   if (delta < (sysinterval_t)CH_CFG_ST_TIMEDELTA) {
     delta = (sysinterval_t)CH_CFG_ST_TIMEDELTA;
   }
-- 
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