diff options
Diffstat (limited to 'sound/usb/pcm.c')
| -rw-r--r-- | sound/usb/pcm.c | 12 |
1 files changed, 6 insertions, 6 deletions
diff --git a/sound/usb/pcm.c b/sound/usb/pcm.c index 55e741c5f231..37428f74dbb6 100644 --- a/sound/usb/pcm.c +++ b/sound/usb/pcm.c @@ -503,12 +503,12 @@ static int snd_usb_hw_params(struct snd_pcm_substream *substream, return -EINVAL; } - mutex_lock(&subs->stream->chip->shutdown_mutex); + down_read(&subs->stream->chip->shutdown_rwsem); if (subs->stream->chip->shutdown) ret = -ENODEV; else ret = set_format(subs, fmt); - mutex_unlock(&subs->stream->chip->shutdown_mutex); + up_read(&subs->stream->chip->shutdown_rwsem); if (ret < 0) return ret; @@ -531,12 +531,12 @@ static int snd_usb_hw_free(struct snd_pcm_substream *substream) subs->cur_audiofmt = NULL; subs->cur_rate = 0; subs->period_bytes = 0; - mutex_lock(&subs->stream->chip->shutdown_mutex); + down_read(&subs->stream->chip->shutdown_rwsem); if (!subs->stream->chip->shutdown) { stop_endpoints(subs, 0, 1, 1); deactivate_endpoints(subs); } - mutex_unlock(&subs->stream->chip->shutdown_mutex); + up_read(&subs->stream->chip->shutdown_rwsem); return snd_pcm_lib_free_vmalloc_buffer(substream); } @@ -558,7 +558,7 @@ static int snd_usb_pcm_prepare(struct snd_pcm_substream *substream) return -ENXIO; } - mutex_lock(&subs->stream->chip->shutdown_mutex); + down_read(&subs->stream->chip->shutdown_rwsem); if (subs->stream->chip->shutdown) { ret = -ENODEV; goto unlock; @@ -608,7 +608,7 @@ static int snd_usb_pcm_prepare(struct snd_pcm_substream *substream) ret = start_endpoints(subs, 1); unlock: - mutex_unlock(&subs->stream->chip->shutdown_mutex); + up_read(&subs->stream->chip->shutdown_rwsem); return ret; } |