[src/trunk]: src/sys/arch/arm/cortex delta can't be negative. Wrapped value i...

[joerg <joerg%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/afd5c0357e0b
branches:  trunk
changeset: 325304:afd5c0357e0b
user:      joerg <joerg%NetBSD.org@localhost>
date:      Tue Dec 17 13:11:18 2013 +0000

description:
delta can't be negative. Wrapped value is seen as large positive, so
covered already.

diffstat:

 sys/arch/arm/cortex/gtmr.c |  6 +++---
 1 files changed, 3 insertions(+), 3 deletions(-)

diffs (27 lines):

diff -r acb7fd9c2061 -r afd5c0357e0b sys/arch/arm/cortex/gtmr.c
--- a/sys/arch/arm/cortex/gtmr.c        Tue Dec 17 12:51:26 2013 +0000
+++ b/sys/arch/arm/cortex/gtmr.c        Tue Dec 17 13:11:18 2013 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: gtmr.c,v 1.4 2013/09/12 15:38:04 matt Exp $    */
+/*     $NetBSD: gtmr.c,v 1.5 2013/12/17 13:11:18 joerg Exp $   */
 
 /*-
  * Copyright (c) 2012 The NetBSD Foundation, Inc.
@@ -30,7 +30,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: gtmr.c,v 1.4 2013/09/12 15:38:04 matt Exp $");
+__KERNEL_RCSID(0, "$NetBSD: gtmr.c,v 1.5 2013/12/17 13:11:18 joerg Exp $");
 
 #include <sys/param.h>
 #include <sys/bus.h>
@@ -277,7 +277,7 @@
         * adjust for jitter.
         */
        delta -= sc->sc_autoinc;
-       if (delta < 0 || delta >= sc->sc_autoinc) {
+       if (delta >= sc->sc_autoinc) {
                delta = 0;
        }
        armreg_cntv_tval_write(sc->sc_autoinc - delta);