[src/trunk]: src/sys/kern Add a KASSERT, otherwise it looks like a NULL deref...

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

details:   https://anonhg.NetBSD.org/src/rev/11f5f25461bc
branches:  trunk
changeset: 821668:11f5f25461bc
user:      maxv <maxv%NetBSD.org@localhost>
date:      Sun Feb 12 18:43:56 2017 +0000

description:
Add a KASSERT, otherwise it looks like a NULL deref; from Mootja.

diffstat:

 sys/kern/kern_clock.c |  5 +++--
 1 files changed, 3 insertions(+), 2 deletions(-)

diffs (26 lines):

diff -r b38ee1198ea4 -r 11f5f25461bc sys/kern/kern_clock.c
--- a/sys/kern/kern_clock.c     Sun Feb 12 18:24:31 2017 +0000
+++ b/sys/kern/kern_clock.c     Sun Feb 12 18:43:56 2017 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: kern_clock.c,v 1.134 2015/04/22 16:46:58 pooka Exp $   */
+/*     $NetBSD: kern_clock.c,v 1.135 2017/02/12 18:43:56 maxv Exp $    */
 
 /*-
  * Copyright (c) 2000, 2004, 2006, 2007, 2008 The NetBSD Foundation, Inc.
@@ -69,7 +69,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: kern_clock.c,v 1.134 2015/04/22 16:46:58 pooka Exp $");
+__KERNEL_RCSID(0, "$NetBSD: kern_clock.c,v 1.135 2017/02/12 18:43:56 maxv Exp $");
 
 #ifdef _KERNEL_OPT
 #include "opt_dtrace.h"
@@ -394,6 +394,7 @@
        }
 
        if (CLKF_USERMODE(frame)) {
+               KASSERT(p != NULL);
                if ((p->p_stflag & PST_PROFIL) && profsrc == PROFSRC_CLOCK)
                        addupc_intr(l, CLKF_PC(frame));
                if (--spc->spc_pscnt > 0) {