[src/trunk]: src/sys/arch/x86/x86 more conservative length check.

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

details:   https://anonhg.NetBSD.org/src/rev/1f5092b7e2c9
branches:  trunk
changeset: 795563:1f5092b7e2c9
user:      christos <christos%NetBSD.org@localhost>
date:      Fri Apr 18 15:00:37 2014 +0000

description:
more conservative length check.

diffstat:

 sys/arch/x86/x86/est.c |  9 ++++-----
 1 files changed, 4 insertions(+), 5 deletions(-)

diffs (33 lines):

diff -r db60f6ffc4bf -r 1f5092b7e2c9 sys/arch/x86/x86/est.c
--- a/sys/arch/x86/x86/est.c    Fri Apr 18 14:32:49 2014 +0000
+++ b/sys/arch/x86/x86/est.c    Fri Apr 18 15:00:37 2014 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: est.c,v 1.29 2014/03/27 18:22:56 christos Exp $        */
+/*     $NetBSD: est.c,v 1.30 2014/04/18 15:00:37 christos Exp $        */
 /*
  * Copyright (c) 2003 Michael Eriksson.
  * All rights reserved.
@@ -76,7 +76,7 @@
  *   http://www.codemonkey.org.uk/projects/cpufreq/cpufreq-2.4.22-pre6-1.gz
  */
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: est.c,v 1.29 2014/03/27 18:22:56 christos Exp $");
+__KERNEL_RCSID(0, "$NetBSD: est.c,v 1.30 2014/04/18 15:00:37 christos Exp $");
 
 #include <sys/param.h>
 #include <sys/device.h>
@@ -1272,12 +1272,11 @@
                return false;
 
        for (i = len = 0; i < sc->sc_fqlist->n; i++) {
-
+               if (len >= sc->sc_freqs_len)
+                       break;
                len += snprintf(sc->sc_freqs + len, sc->sc_freqs_len - len,
                    "%d%s", MSR2MHZ(sc->sc_fqlist->table[i], sc->sc_bus_clock),
                    i < sc->sc_fqlist->n - 1 ? " " : "");
-               if (len > sc->sc_freqs_len)
-                       break;
        }
 
        aprint_debug_dev(self, "%d mV, %d (MHz): %s\n", mv,