[src/trunk]: src/sys/kern Check msgbufenabled before referencing msgbufp in p...

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

details:   https://anonhg.NetBSD.org/src/rev/ca4a7ea0efbf
branches:  trunk
changeset: 512599:ca4a7ea0efbf
user:      fvdl <fvdl%NetBSD.org@localhost>
date:      Tue Jul 10 20:40:56 2001 +0000

description:
Check msgbufenabled before referencing msgbufp in panic. Avoids
a NULL ptr reference if there is an early panic (i.e. before
initmsgbuf() was called).

diffstat:

 sys/kern/subr_prf.c |  6 +++---
 1 files changed, 3 insertions(+), 3 deletions(-)

diffs (27 lines):

diff -r 85e2679058ff -r ca4a7ea0efbf sys/kern/subr_prf.c
--- a/sys/kern/subr_prf.c       Tue Jul 10 20:23:36 2001 +0000
+++ b/sys/kern/subr_prf.c       Tue Jul 10 20:40:56 2001 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: subr_prf.c,v 1.80 2001/05/30 15:24:25 lukem Exp $      */
+/*     $NetBSD: subr_prf.c,v 1.81 2001/07/10 20:40:56 fvdl Exp $       */
 
 /*-
  * Copyright (c) 1986, 1988, 1991, 1993
@@ -207,7 +207,7 @@
                panicstr = fmt;
        doing_shutdown = 1;
 
-       if (msgbufp->msg_magic == MSG_MAGIC)
+       if (msgbufenabled && msgbufp->msg_magic == MSG_MAGIC)
                panicstart = msgbufp->msg_bufx;
        
        va_start(ap, fmt);
@@ -216,7 +216,7 @@
        printf("\n");
        va_end(ap);
 
-       if (msgbufp->msg_magic == MSG_MAGIC)
+       if (msgbufenabled && msgbufp->msg_magic == MSG_MAGIC)
                panicend = msgbufp->msg_bufx;
 
 #ifdef IPKDB