[src/trunk]: src/sys/dev Remove dead codes.

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

details:   https://anonhg.NetBSD.org/src/rev/63534f91c36f
branches:  trunk
changeset: 355786:63534f91c36f
user:      isaki <isaki%NetBSD.org@localhost>
date:      Tue Aug 15 05:05:32 2017 +0000

description:
Remove dead codes.
sc->sc_opens never changes in this loop and as a result of
previous sc_audiochan cleanup "sc_opens == 0" is the same as
"sc_audiochan is empty".

diffstat:

 sys/dev/audio.c |  10 ++--------
 1 files changed, 2 insertions(+), 8 deletions(-)

diffs (38 lines):

diff -r 294c47b4f2fc -r 63534f91c36f sys/dev/audio.c
--- a/sys/dev/audio.c   Tue Aug 15 04:42:56 2017 +0000
+++ b/sys/dev/audio.c   Tue Aug 15 05:05:32 2017 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: audio.c,v 1.394 2017/08/15 04:42:56 isaki Exp $        */
+/*     $NetBSD: audio.c,v 1.395 2017/08/15 05:05:32 isaki 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 1.394 2017/08/15 04:42:56 isaki Exp $");
+__KERNEL_RCSID(0, "$NetBSD: audio.c,v 1.395 2017/08/15 05:05:32 isaki Exp $");
 
 #ifdef _KERNEL_OPT
 #include "audio.h"
@@ -3669,9 +3669,6 @@
 
        blksize = sc->sc_pr.blksize;
        SIMPLEQ_FOREACH(chan, &sc->sc_audiochan, entries) {
-               if (!sc->sc_opens)
-                       break;          /* ignore interrupt if not open */
-
                vc = chan->vc;
 
                if (!vc->sc_open)
@@ -3877,9 +3874,6 @@
        blksize = sc->sc_rr.blksize;
 
        SIMPLEQ_FOREACH(chan, &sc->sc_audiochan, entries) {
-               if (!sc->sc_opens)
-                       break;          /* ignore interrupt if not open */
-
                vc = chan->vc;
 
                if (!(vc->sc_open & AUOPEN_READ))