[src/trunk]: src/sys/kern Missed a spot! (Part II(b) of no percpu_foreach un...

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

details:   https://anonhg.NetBSD.org/src/rev/bca2365f7b67
branches:  trunk
changeset: 1009692:bca2365f7b67
user:      riastradh <riastradh%NetBSD.org@localhost>
date:      Thu Apr 30 17:16:00 2020 +0000

description:
Missed a spot!  (Part II(b) of no percpu_foreach under spin lock.)

diffstat:

 sys/kern/kern_entropy.c |  6 ++++--
 1 files changed, 4 insertions(+), 2 deletions(-)

diffs (28 lines):

diff -r cec13c0063af -r bca2365f7b67 sys/kern/kern_entropy.c
--- a/sys/kern/kern_entropy.c   Thu Apr 30 16:56:23 2020 +0000
+++ b/sys/kern/kern_entropy.c   Thu Apr 30 17:16:00 2020 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: kern_entropy.c,v 1.4 2020/04/30 16:50:00 riastradh Exp $       */
+/*     $NetBSD: kern_entropy.c,v 1.5 2020/04/30 17:16:00 riastradh Exp $       */
 
 /*-
  * Copyright (c) 2019 The NetBSD Foundation, Inc.
@@ -77,7 +77,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: kern_entropy.c,v 1.4 2020/04/30 16:50:00 riastradh Exp $");
+__KERNEL_RCSID(0, "$NetBSD: kern_entropy.c,v 1.5 2020/04/30 17:16:00 riastradh Exp $");
 
 #include <sys/param.h>
 #include <sys/types.h>
@@ -2000,7 +2000,9 @@
                                break;
                }
                while (i < stat->count && rs != NULL) {
+                       mutex_exit(&E->lock);
                        rndsource_to_user(rs, &stat->source[i++]);
+                       mutex_enter(&E->lock);
                        rs = LIST_NEXT(rs, list);
                }
                KASSERT(i <= stat->count);