diff options
Diffstat (limited to 'sound/core/pcm.c')
| -rw-r--r-- | sound/core/pcm.c | 32 |
1 files changed, 12 insertions, 20 deletions
diff --git a/sound/core/pcm.c b/sound/core/pcm.c index 4701f07ee0a..76fcc5234d8 100644 --- a/sound/core/pcm.c +++ b/sound/core/pcm.c @@ -45,11 +45,9 @@ static int snd_pcm_dev_disconnect(struct snd_device *device); static struct snd_pcm *snd_pcm_search(struct snd_card *card, int device) { - struct list_head *p; struct snd_pcm *pcm; - list_for_each(p, &snd_pcm_devices) { - pcm = list_entry(p, struct snd_pcm, list); + list_for_each_entry(pcm, &snd_pcm_devices, list) { if (pcm->card == card && pcm->device == device) return pcm; } @@ -782,7 +780,6 @@ int snd_pcm_attach_substream(struct snd_pcm *pcm, int stream, struct snd_pcm_runtime *runtime; struct snd_ctl_file *kctl; struct snd_card *card; - struct list_head *list; int prefer_subdevice = -1; size_t size; @@ -795,8 +792,7 @@ int snd_pcm_attach_substream(struct snd_pcm *pcm, int stream, card = pcm->card; down_read(&card->controls_rwsem); - list_for_each(list, &card->ctl_files) { - kctl = snd_ctl_file(list); + list_for_each_entry(kctl, &card->ctl_files, list) { if (kctl->pid == current->pid) { prefer_subdevice = kctl->prefer_pcm_subdevice; if (prefer_subdevice != -1) @@ -941,7 +937,7 @@ static int snd_pcm_dev_register(struct snd_device *device) { int cidx, err; struct snd_pcm_substream *substream; - struct list_head *list; + struct snd_pcm_notify *notify; char str[16]; struct snd_pcm *pcm = device->device_data; struct device *dev; @@ -988,11 +984,10 @@ static int snd_pcm_dev_register(struct snd_device *device) for (substream = pcm->streams[cidx].substream; substream; substream = substream->next) snd_pcm_timer_init(substream); } - list_for_each(list, &snd_pcm_notify_list) { - struct snd_pcm_notify *notify; - notify = list_entry(list, struct snd_pcm_notify, list); + + list_for_each_entry(notify, &snd_pcm_notify_list, list) notify->n_register(pcm); - } + mutex_unlock(®ister_mutex); return 0; } @@ -1035,7 +1030,7 @@ static int snd_pcm_dev_disconnect(struct snd_device *device) int snd_pcm_notify(struct snd_pcm_notify *notify, int nfree) { - struct list_head *p; + struct snd_pcm *pcm; snd_assert(notify != NULL && notify->n_register != NULL && @@ -1044,13 +1039,12 @@ int snd_pcm_notify(struct snd_pcm_notify *notify, int nfree) mutex_lock(®ister_mutex); if (nfree) { list_del(¬ify->list); - list_for_each(p, &snd_pcm_devices) - notify->n_unregister(list_entry(p, - struct snd_pcm, list)); + list_for_each_entry(pcm, &snd_pcm_devices, list) + notify->n_unregister(pcm); } else { list_add_tail(¬ify->list, &snd_pcm_notify_list); - list_for_each(p, &snd_pcm_devices) - notify->n_register(list_entry(p, struct snd_pcm, list)); + list_for_each_entry(pcm, &snd_pcm_devices, list) + notify->n_register(pcm); } mutex_unlock(®ister_mutex); return 0; @@ -1066,12 +1060,10 @@ EXPORT_SYMBOL(snd_pcm_notify); static void snd_pcm_proc_read(struct snd_info_entry *entry, struct snd_info_buffer *buffer) { - struct list_head *p; struct snd_pcm *pcm; mutex_lock(®ister_mutex); - list_for_each(p, &snd_pcm_devices) { - pcm = list_entry(p, struct snd_pcm, list); + list_for_each_entry(pcm, &snd_pcm_devices, list) { snd_iprintf(buffer, "%02i-%02i: %s : %s", pcm->card->number, pcm->device, pcm->id, pcm->name); if (pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream) |