[src/trunk]: src/sys/arch/x86/x86 Zero out the buffer entirely.

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

details:   https://anonhg.NetBSD.org/src/rev/64252242a6d5
branches:  trunk
changeset: 357218:64252242a6d5
user:      maxv <maxv%NetBSD.org@localhost>
date:      Tue Oct 31 18:23:29 2017 +0000

description:
Zero out the buffer entirely.

diffstat:

 sys/arch/x86/x86/fpu.c |  6 +++---
 1 files changed, 3 insertions(+), 3 deletions(-)

diffs (27 lines):

diff -r 22ee1dac94ac -r 64252242a6d5 sys/arch/x86/x86/fpu.c
--- a/sys/arch/x86/x86/fpu.c    Tue Oct 31 18:13:37 2017 +0000
+++ b/sys/arch/x86/x86/fpu.c    Tue Oct 31 18:23:29 2017 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: fpu.c,v 1.19 2017/10/31 18:13:37 maxv Exp $    */
+/*     $NetBSD: fpu.c,v 1.20 2017/10/31 18:23:29 maxv Exp $    */
 
 /*
  * Copyright (c) 2008 The NetBSD Foundation, Inc.  All
@@ -96,7 +96,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: fpu.c,v 1.19 2017/10/31 18:13:37 maxv Exp $");
+__KERNEL_RCSID(0, "$NetBSD: fpu.c,v 1.20 2017/10/31 18:23:29 maxv Exp $");
 
 #include "opt_multiprocessor.h"
 
@@ -645,7 +645,7 @@
        fpu_save = process_fpframe(l);
 
        if (i386_use_fxsave) {
-               memset(fpregs, 0, 12);
+               memset(fpregs, 0, sizeof(*fpregs));
                process_xmm_to_s87(&fpu_save->sv_xmm, fpregs);
        } else {
                memcpy(fpregs, &fpu_save->sv_87, sizeof(fpu_save->sv_87));