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no need to acquire thread lock in btsco_open / btsco_close, as they are 

already held by MI audio when these methods are called
This commit is contained in:
jmcneill 2011-12-10 16:16:11 +00:00
parent 2c9a7b42f6
commit 5b074fdc34
1 changed files with 5 additions and 7 deletions
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12
sys/dev/bluetooth/btsco.c
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@ -1,4 +1,4 @@
/* $NetBSD: btsco.c,v 1.25 2011/11/23 23:07:31 jmcneill Exp $ */
/* $NetBSD: btsco.c,v 1.26 2011/12/10 16:16:11 jmcneill Exp $ */
/*-
* Copyright (c) 2006 Itronix Inc.
@ -32,7 +32,7 @@
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: btsco.c,v 1.25 2011/11/23 23:07:31 jmcneill Exp $");
__KERNEL_RCSID(0, "$NetBSD: btsco.c,v 1.26 2011/12/10 16:16:11 jmcneill Exp $");
#include <sys/param.h>
#include <sys/audioio.h>
@ -576,7 +576,7 @@ btsco_open(void *hdl, int flags)
if (sc->sc_sco != NULL || sc->sc_sco_l != NULL)
return EIO;
mutex_enter(bt_lock);
KASSERT(mutex_owned(bt_lock));
memset(&sa, 0, sizeof(sa));
sa.bt_len = sizeof(sa);
@ -653,8 +653,6 @@ btsco_open(void *hdl, int flags)
}
done:
mutex_exit(bt_lock);
DPRINTF("done err=%d, sc_state=%d, sc_mtu=%d\n",
err, sc->sc_state, sc->sc_mtu);
return err;
@ -667,7 +665,8 @@ btsco_close(void *hdl)
DPRINTF("%s\n", sc->sc_name);
mutex_enter(bt_lock);
KASSERT(mutex_owned(bt_lock));
if (sc->sc_sco != NULL) {
sco_disconnect(sc->sc_sco, 0);
sco_detach(&sc->sc_sco);
@ -676,7 +675,6 @@ btsco_close(void *hdl)
if (sc->sc_sco_l != NULL) {
sco_detach(&sc->sc_sco_l);
}
mutex_exit(bt_lock);
if (sc->sc_rx_mbuf != NULL) {
m_freem(sc->sc_rx_mbuf);