[src/trunk]: src/sys/dev/usb memcpy of overlapping arguments is UB. use memmove.

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

details:   https://anonhg.NetBSD.org/src/rev/34f5fc52e352
branches:  trunk
changeset: 352036:34f5fc52e352
user:      maya <maya%NetBSD.org@localhost>
date:      Sat Mar 11 12:41:14 2017 +0000

description:
memcpy of overlapping arguments is UB. use memmove.
CID 1299071

ok riastradh

diffstat:

 sys/dev/usb/uhid.c |  6 +++---
 1 files changed, 3 insertions(+), 3 deletions(-)

diffs (27 lines):

diff -r 93b83f190645 -r 34f5fc52e352 sys/dev/usb/uhid.c
--- a/sys/dev/usb/uhid.c        Sat Mar 11 12:19:30 2017 +0000
+++ b/sys/dev/usb/uhid.c        Sat Mar 11 12:41:14 2017 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: uhid.c,v 1.98 2016/07/07 06:55:42 msaitoh Exp $        */
+/*     $NetBSD: uhid.c,v 1.99 2017/03/11 12:41:14 maya Exp $   */
 
 /*
  * Copyright (c) 1998, 2004, 2008, 2012 The NetBSD Foundation, Inc.
@@ -35,7 +35,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: uhid.c,v 1.98 2016/07/07 06:55:42 msaitoh Exp $");
+__KERNEL_RCSID(0, "$NetBSD: uhid.c,v 1.99 2017/03/11 12:41:14 maya Exp $");
 
 #ifdef _KERNEL_OPT
 #include "opt_compat_netbsd.h"
@@ -613,7 +613,7 @@
                err = uhidev_get_report(&sc->sc_hdev, re->ucr_report,
                    re->ucr_data, size + extra);
                if (extra)
-                       memcpy(re->ucr_data, re->ucr_data+1, size);
+                       memmove(re->ucr_data, re->ucr_data+1, size);
                if (err)
                        return EIO;
                break;