[src/trunk]: src/sys/dev/usb Don't call mutex_spin_exit on already released l...

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

details:   https://anonhg.NetBSD.org/src/rev/8672f2694198
branches:  trunk
changeset: 790209:8672f2694198
user:      skrll <skrll%NetBSD.org@localhost>
date:      Fri Sep 27 13:34:48 2013 +0000

description:
Don't call mutex_spin_exit on already released lock.

diffstat:

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

diffs (34 lines):

diff -r 0376f84b125a -r 8672f2694198 sys/dev/usb/uaudio.c
--- a/sys/dev/usb/uaudio.c      Thu Sep 26 16:18:52 2013 +0000
+++ b/sys/dev/usb/uaudio.c      Fri Sep 27 13:34:48 2013 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: uaudio.c,v 1.138 2013/09/15 15:04:47 martin Exp $      */
+/*     $NetBSD: uaudio.c,v 1.139 2013/09/27 13:34:48 skrll Exp $       */
 
 /*
  * Copyright (c) 1999, 2012 The NetBSD Foundation, Inc.
@@ -37,7 +37,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: uaudio.c,v 1.138 2013/09/15 15:04:47 martin Exp $");
+__KERNEL_RCSID(0, "$NetBSD: uaudio.c,v 1.139 2013/09/27 13:34:48 skrll Exp $");
 
 #include <sys/param.h>
 #include <sys/systm.h>
@@ -2602,7 +2602,6 @@
        ch->intr = intr;
        ch->arg = arg;
 
-       mutex_spin_exit(&sc->sc_intr_lock);
        for (i = 0; i < UAUDIO_NCHANBUFS-1; i++) /* XXX -1 shouldn't be needed */
                uaudio_chan_rtransfer(ch);
        mutex_spin_enter(&sc->sc_intr_lock);
@@ -2649,7 +2648,6 @@
        ch->intr = intr;
        ch->arg = arg;
 
-       mutex_spin_exit(&sc->sc_intr_lock);
        for (i = 0; i < UAUDIO_NCHANBUFS-1; i++) /* XXX */
                uaudio_chan_ptransfer(ch);
        mutex_spin_enter(&sc->sc_intr_lock);