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Diffstat (limited to 'sound/core/pcm.c')
-rw-r--r--sound/core/pcm.c45
1 files changed, 24 insertions, 21 deletions
diff --git a/sound/core/pcm.c b/sound/core/pcm.c
index 28ca61eb0b0..3da6a38c2d0 100644
--- a/sound/core/pcm.c
+++ b/sound/core/pcm.c
@@ -23,6 +23,7 @@
#include <linux/init.h>
#include <linux/slab.h>
#include <linux/time.h>
+#include <linux/mutex.h>
#include <sound/core.h>
#include <sound/minors.h>
#include <sound/pcm.h>
@@ -35,7 +36,7 @@ MODULE_LICENSE("GPL");
static LIST_HEAD(snd_pcm_devices);
static LIST_HEAD(snd_pcm_notify_list);
-static DECLARE_MUTEX(register_mutex);
+static DEFINE_MUTEX(register_mutex);
static int snd_pcm_free(struct snd_pcm *pcm);
static int snd_pcm_dev_free(struct snd_device *device);
@@ -67,7 +68,7 @@ static int snd_pcm_control_ioctl(struct snd_card *card,
if (get_user(device, (int __user *)arg))
return -EFAULT;
- down(&register_mutex);
+ mutex_lock(&register_mutex);
device = device < 0 ? 0 : device + 1;
while (device < SNDRV_PCM_DEVICES) {
if (snd_pcm_search(card, device))
@@ -76,7 +77,7 @@ static int snd_pcm_control_ioctl(struct snd_card *card,
}
if (device == SNDRV_PCM_DEVICES)
device = -1;
- up(&register_mutex);
+ mutex_unlock(&register_mutex);
if (put_user(device, (int __user *)arg))
return -EFAULT;
return 0;
@@ -100,7 +101,7 @@ static int snd_pcm_control_ioctl(struct snd_card *card,
return -EINVAL;
if (get_user(subdevice, &info->subdevice))
return -EFAULT;
- down(&register_mutex);
+ mutex_lock(&register_mutex);
pcm = snd_pcm_search(card, device);
if (pcm == NULL) {
err = -ENXIO;
@@ -125,7 +126,7 @@ static int snd_pcm_control_ioctl(struct snd_card *card,
}
err = snd_pcm_info_user(substream, info);
_error:
- up(&register_mutex);
+ mutex_unlock(&register_mutex);
return err;
}
case SNDRV_CTL_IOCTL_PCM_PREFER_SUBDEVICE:
@@ -140,6 +141,9 @@ static int snd_pcm_control_ioctl(struct snd_card *card,
}
return -ENOIOCTLCMD;
}
+
+#if defined(CONFIG_PROC_FS) && defined(CONFIG_SND_VERBOSE_PROCFS)
+
#define STATE(v) [SNDRV_PCM_STATE_##v] = #v
#define STREAM(v) [SNDRV_PCM_STREAM_##v] = #v
#define READY(v) [SNDRV_PCM_READY_##v] = #v
@@ -197,7 +201,6 @@ const char *snd_pcm_format_name(snd_pcm_format_t format)
return snd_pcm_format_names[format];
}
-#ifdef CONFIG_PROC_FS
static char *snd_pcm_stream_names[] = {
STREAM(PLAYBACK),
STREAM(CAPTURE),
@@ -260,6 +263,7 @@ static const char *snd_pcm_state_name(snd_pcm_state_t state)
#if defined(CONFIG_SND_PCM_OSS) || defined(CONFIG_SND_PCM_OSS_MODULE)
#include <linux/soundcard.h>
+
static const char *snd_pcm_oss_format_name(int format)
{
switch (format) {
@@ -622,7 +626,7 @@ int snd_pcm_new_stream(struct snd_pcm *pcm, int stream, int substream_count)
struct snd_pcm_substream *substream, *prev;
#if defined(CONFIG_SND_PCM_OSS) || defined(CONFIG_SND_PCM_OSS_MODULE)
- init_MUTEX(&pstr->oss.setup_mutex);
+ mutex_init(&pstr->oss.setup_mutex);
#endif
pstr->stream = stream;
pstr->pcm = pcm;
@@ -716,7 +720,7 @@ int snd_pcm_new(struct snd_card *card, char *id, int device,
snd_pcm_free(pcm);
return err;
}
- init_MUTEX(&pcm->open_mutex);
+ mutex_init(&pcm->open_mutex);
init_waitqueue_head(&pcm->open_wait);
if ((err = snd_device_new(card, SNDRV_DEV_PCM, pcm, &ops)) < 0) {
snd_pcm_free(pcm);
@@ -902,9 +906,9 @@ static int snd_pcm_dev_register(struct snd_device *device)
struct snd_pcm *pcm = device->device_data;
snd_assert(pcm != NULL && device != NULL, return -ENXIO);
- down(&register_mutex);
+ mutex_lock(&register_mutex);
if (snd_pcm_search(pcm->card, pcm->device)) {
- up(&register_mutex);
+ mutex_unlock(&register_mutex);
return -EBUSY;
}
list_add_tail(&pcm->list, &snd_pcm_devices);
@@ -928,7 +932,7 @@ static int snd_pcm_dev_register(struct snd_device *device)
pcm, str)) < 0)
{
list_del(&pcm->list);
- up(&register_mutex);
+ mutex_unlock(&register_mutex);
return err;
}
for (substream = pcm->streams[cidx].substream; substream; substream = substream->next)
@@ -939,7 +943,7 @@ static int snd_pcm_dev_register(struct snd_device *device)
notify = list_entry(list, struct snd_pcm_notify, list);
notify->n_register(pcm);
}
- up(&register_mutex);
+ mutex_unlock(&register_mutex);
return 0;
}
@@ -950,7 +954,7 @@ static int snd_pcm_dev_disconnect(struct snd_device *device)
struct snd_pcm_substream *substream;
int cidx;
- down(&register_mutex);
+ mutex_lock(&register_mutex);
list_del_init(&pcm->list);
for (cidx = 0; cidx < 2; cidx++)
for (substream = pcm->streams[cidx].substream; substream; substream = substream->next)
@@ -961,7 +965,7 @@ static int snd_pcm_dev_disconnect(struct snd_device *device)
notify = list_entry(list, struct snd_pcm_notify, list);
notify->n_disconnect(pcm);
}
- up(&register_mutex);
+ mutex_unlock(&register_mutex);
return 0;
}
@@ -973,7 +977,7 @@ static int snd_pcm_dev_unregister(struct snd_device *device)
struct snd_pcm *pcm = device->device_data;
snd_assert(pcm != NULL, return -ENXIO);
- down(&register_mutex);
+ mutex_lock(&register_mutex);
list_del(&pcm->list);
for (cidx = 0; cidx < 2; cidx++) {
devtype = -1;
@@ -994,7 +998,7 @@ static int snd_pcm_dev_unregister(struct snd_device *device)
notify = list_entry(list, struct snd_pcm_notify, list);
notify->n_unregister(pcm);
}
- up(&register_mutex);
+ mutex_unlock(&register_mutex);
return snd_pcm_free(pcm);
}
@@ -1003,7 +1007,7 @@ int snd_pcm_notify(struct snd_pcm_notify *notify, int nfree)
struct list_head *p;
snd_assert(notify != NULL && notify->n_register != NULL && notify->n_unregister != NULL, return -EINVAL);
- down(&register_mutex);
+ mutex_lock(&register_mutex);
if (nfree) {
list_del(&notify->list);
list_for_each(p, &snd_pcm_devices)
@@ -1014,7 +1018,7 @@ int snd_pcm_notify(struct snd_pcm_notify *notify, int nfree)
list_for_each(p, &snd_pcm_devices)
notify->n_register(list_entry(p, struct snd_pcm, list));
}
- up(&register_mutex);
+ mutex_unlock(&register_mutex);
return 0;
}
@@ -1029,7 +1033,7 @@ static void snd_pcm_proc_read(struct snd_info_entry *entry,
struct list_head *p;
struct snd_pcm *pcm;
- down(&register_mutex);
+ mutex_lock(&register_mutex);
list_for_each(p, &snd_pcm_devices) {
pcm = list_entry(p, struct snd_pcm, list);
snd_iprintf(buffer, "%02i-%02i: %s : %s",
@@ -1042,7 +1046,7 @@ static void snd_pcm_proc_read(struct snd_info_entry *entry,
pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream_count);
snd_iprintf(buffer, "\n");
}
- up(&register_mutex);
+ mutex_unlock(&register_mutex);
}
static struct snd_info_entry *snd_pcm_proc_entry = NULL;
@@ -1101,7 +1105,6 @@ EXPORT_SYMBOL(snd_pcm_new_stream);
EXPORT_SYMBOL(snd_pcm_notify);
EXPORT_SYMBOL(snd_pcm_open_substream);
EXPORT_SYMBOL(snd_pcm_release_substream);
-EXPORT_SYMBOL(snd_pcm_format_name);
/* pcm_native.c */
EXPORT_SYMBOL(snd_pcm_link_rwlock);
#ifdef CONFIG_PM
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-11-16 10:55:03 +0000