[src/trunk]: src/sys/dev Ensure to call mix write if inserting silence into t...

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

details:   https://anonhg.NetBSD.org/src/rev/b9107e8c2bba
branches:  trunk
changeset: 825919:b9107e8c2bba
user:      nat <nat%NetBSD.org@localhost>
date:      Sun Aug 06 10:07:31 2017 +0000

description:
Ensure to call mix write if inserting silence into the hw ring.

Addresses PR kern/52459.

Patch provided and tested by isaki@.

diffstat:

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

diffs (31 lines):

diff -r 7041642f0b39 -r b9107e8c2bba sys/dev/audio.c
--- a/sys/dev/audio.c   Sun Aug 06 09:14:14 2017 +0000
+++ b/sys/dev/audio.c   Sun Aug 06 10:07:31 2017 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: audio.c,v 1.386 2017/08/05 13:34:06 nat Exp $  */
+/*     $NetBSD: audio.c,v 1.387 2017/08/06 10:07:31 nat Exp $  */
 
 /*-
  * Copyright (c) 2016 Nathanial Sloss <nathanialsloss%yahoo.com.au@localhost>
@@ -148,7 +148,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: audio.c,v 1.386 2017/08/05 13:34:06 nat Exp $");
+__KERNEL_RCSID(0, "$NetBSD: audio.c,v 1.387 2017/08/06 10:07:31 nat Exp $");
 
 #ifdef _KERNEL_OPT
 #include "audio.h"
@@ -3682,12 +3682,10 @@
                            vc->sc_mpr.s.inp, cc);
                        used -= cc;
                }
-               goto wake_mix;
        }
 
        mix_write(sc);
 
-wake_mix:
        cv_broadcast(&sc->sc_condvar);
 }