[src/trunk]: src/sys/dev/audio Move mutex_exit() correct place to protect sc_...

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

details:   https://anonhg.NetBSD.org/src/rev/a8353751b8c7
branches:  trunk
changeset: 968237:a8353751b8c7
user:      isaki <isaki%NetBSD.org@localhost>
date:      Wed Jan 08 08:10:15 2020 +0000

description:
Move mutex_exit() correct place to protect sc_async_mixer.
Thanks maxv@!

diffstat:

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

diffs (32 lines):

diff -r c75916cdfd0e -r a8353751b8c7 sys/dev/audio/audio.c
--- a/sys/dev/audio/audio.c     Wed Jan 08 05:41:07 2020 +0000
+++ b/sys/dev/audio/audio.c     Wed Jan 08 08:10:15 2020 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: audio.c,v 1.36 2019/12/27 09:45:26 msaitoh Exp $       */
+/*     $NetBSD: audio.c,v 1.37 2020/01/08 08:10:15 isaki Exp $ */
 
 /*-
  * Copyright (c) 2008 The NetBSD Foundation, Inc.
@@ -142,7 +142,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: audio.c,v 1.36 2019/12/27 09:45:26 msaitoh Exp $");
+__KERNEL_RCSID(0, "$NetBSD: audio.c,v 1.37 2020/01/08 08:10:15 isaki Exp $");
 
 #ifdef _KERNEL_OPT
 #include "audio.h"
@@ -7694,12 +7694,12 @@
                }
                mutex_enter(sc->sc_lock);
                mixer_remove(sc);       /* remove old entry */
-               mutex_exit(sc->sc_lock);
                if (ma != NULL) {
                        ma->next = sc->sc_async_mixer;
                        ma->pid = curproc->p_pid;
                        sc->sc_async_mixer = ma;
                }
+               mutex_exit(sc->sc_lock);
                error = 0;
                break;