diff options
| author | Takashi Iwai <tiwai@suse.de> | 2007-10-30 11:59:15 +0100 |
|---|---|---|
| committer | Jaroslav Kysela <perex@perex.cz> | 2008-01-31 17:29:13 +0100 |
| commit | 05c1afe75fcebf456017ec186811cf1599f4360e (patch) | |
| tree | 3000085048bb79d54f61c993c2b8e5eb1bd0618f /sound/drivers/opl3/opl3_seq.c | |
| parent | 224a033252bba46c5c8b5df625f5e781ca138f48 (diff) | |
| download | linux-05c1afe75fcebf456017ec186811cf1599f4360e.tar.bz2 | |
[ALSA] opl3 - simplify exclusive access lock
Use the exclusive access lock in hwdep instead of the own one.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
Diffstat (limited to 'sound/drivers/opl3/opl3_seq.c')
| -rw-r--r-- | sound/drivers/opl3/opl3_seq.c | 19 |
1 files changed, 11 insertions, 8 deletions
diff --git a/sound/drivers/opl3/opl3_seq.c b/sound/drivers/opl3/opl3_seq.c index ff6da16b9178..6fd60b7e5805 100644 --- a/sound/drivers/opl3/opl3_seq.c +++ b/sound/drivers/opl3/opl3_seq.c @@ -51,14 +51,15 @@ void snd_opl3_synth_use_dec(struct snd_opl3 * opl3) int snd_opl3_synth_setup(struct snd_opl3 * opl3) { int idx; + struct snd_hwdep *hwdep = opl3->hwdep; - mutex_lock(&opl3->access_mutex); - if (opl3->used) { - mutex_unlock(&opl3->access_mutex); + mutex_lock(&hwdep->open_mutex); + if (hwdep->used) { + mutex_unlock(&hwdep->open_mutex); return -EBUSY; } - opl3->used++; - mutex_unlock(&opl3->access_mutex); + hwdep->used++; + mutex_unlock(&hwdep->open_mutex); snd_opl3_reset(opl3); @@ -91,9 +92,11 @@ void snd_opl3_synth_cleanup(struct snd_opl3 * opl3) spin_unlock_irqrestore(&opl3->sys_timer_lock, flags); snd_opl3_reset(opl3); - mutex_lock(&opl3->access_mutex); - opl3->used--; - mutex_unlock(&opl3->access_mutex); + hwdep = opl3->hwdep; + mutex_lock(&hwdep->open_mutex); + hwdep->used--; + mutex_unlock(&hwdep->open_mutex); + wake_up(&hwdep->open_wait); } static int snd_opl3_synth_use(void *private_data, struct snd_seq_port_subscribe * info) |