[src/tls-earlyentropy]: src/sys/kern Skip mutex_tryenter() if !kprnd_added.

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

details:   https://anonhg.NetBSD.org/src/rev/7231926e44a0
branches:  tls-earlyentropy
changeset: 795272:7231926e44a0
user:      tls <tls%NetBSD.org@localhost>
date:      Wed Apr 09 03:41:30 2014 +0000

description:
Skip mutex_tryenter() if !kprnd_added.

diffstat:

 sys/kern/subr_prf.c |  8 ++++----
 1 files changed, 4 insertions(+), 4 deletions(-)

diffs (29 lines):

diff -r 992ae6295c33 -r 7231926e44a0 sys/kern/subr_prf.c
--- a/sys/kern/subr_prf.c       Wed Apr 09 03:39:44 2014 +0000
+++ b/sys/kern/subr_prf.c       Wed Apr 09 03:41:30 2014 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: subr_prf.c,v 1.153.2.1 2014/04/07 02:20:00 tls Exp $   */
+/*     $NetBSD: subr_prf.c,v 1.153.2.2 2014/04/09 03:41:30 tls Exp $   */
 
 /*-
  * Copyright (c) 1986, 1988, 1991, 1993
@@ -37,7 +37,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: subr_prf.c,v 1.153.2.1 2014/04/07 02:20:00 tls Exp $");
+__KERNEL_RCSID(0, "$NetBSD: subr_prf.c,v 1.153.2.2 2014/04/09 03:41:30 tls Exp $");
 
 #include "opt_ddb.h"
 #include "opt_ipkdb.h"
@@ -144,8 +144,8 @@
 
 static void kprintf_rnd_get(size_t bytes, void *priv)
 {
-       if (mutex_tryenter(&kprintf_mtx)) {
-               if (kprnd_added) {
+       if (kprnd_added)  {
+               if (mutex_tryenter(&kprintf_mtx)) {
                        SHA512_Final(kprnd_accum, &kprnd_sha);
                        rnd_add_data(&rnd_printf_source,
                                     kprnd_accum, sizeof(kprnd_accum), 0);