diff options
Diffstat (limited to 'sound/core')
| -rw-r--r-- | sound/core/device.c | 66 | ||||
| -rw-r--r-- | sound/core/init.c | 14 |
2 files changed, 40 insertions, 40 deletions
diff --git a/sound/core/device.c b/sound/core/device.c index 856bfdc79ce..53291ff21a0 100644 --- a/sound/core/device.c +++ b/sound/core/device.c @@ -45,6 +45,7 @@ int snd_device_new(struct snd_card *card, enum snd_device_type type, void *device_data, struct snd_device_ops *ops) { struct snd_device *dev; + struct list_head *p; if (snd_BUG_ON(!card || !device_data || !ops)) return -ENXIO; @@ -53,17 +54,36 @@ int snd_device_new(struct snd_card *card, enum snd_device_type type, dev_err(card->dev, "Cannot allocate device, type=%d\n", type); return -ENOMEM; } + INIT_LIST_HEAD(&dev->list); dev->card = card; dev->type = type; dev->state = SNDRV_DEV_BUILD; dev->device_data = device_data; dev->ops = ops; - list_add(&dev->list, &card->devices); /* add to the head of list */ + + /* insert the entry in an incrementally sorted list */ + list_for_each_prev(p, &card->devices) { + struct snd_device *pdev = list_entry(p, struct snd_device, list); + if ((unsigned int)pdev->type <= (unsigned int)type) + break; + } + + list_add(&dev->list, p); return 0; } - EXPORT_SYMBOL(snd_device_new); +static struct snd_device *look_for_dev(struct snd_card *card, void *device_data) +{ + struct snd_device *dev; + + list_for_each_entry(dev, &card->devices, list) + if (dev->device_data == device_data) + return dev; + + return NULL; +} + /** * snd_device_free - release the device from the card * @card: the card instance @@ -82,9 +102,8 @@ int snd_device_free(struct snd_card *card, void *device_data) if (snd_BUG_ON(!card || !device_data)) return -ENXIO; - list_for_each_entry(dev, &card->devices, list) { - if (dev->device_data != device_data) - continue; + dev = look_for_dev(card, device_data); + if (dev) { /* unlink */ list_del(&dev->list); if (dev->state == SNDRV_DEV_REGISTERED && @@ -103,7 +122,6 @@ int snd_device_free(struct snd_card *card, void *device_data) device_data, __builtin_return_address(0)); return -ENXIO; } - EXPORT_SYMBOL(snd_device_free); /** @@ -125,9 +143,8 @@ int snd_device_disconnect(struct snd_card *card, void *device_data) if (snd_BUG_ON(!card || !device_data)) return -ENXIO; - list_for_each_entry(dev, &card->devices, list) { - if (dev->device_data != device_data) - continue; + dev = look_for_dev(card, device_data); + if (dev) { if (dev->state == SNDRV_DEV_REGISTERED && dev->ops->dev_disconnect) { if (dev->ops->dev_disconnect(dev)) @@ -162,9 +179,8 @@ int snd_device_register(struct snd_card *card, void *device_data) if (snd_BUG_ON(!card || !device_data)) return -ENXIO; - list_for_each_entry(dev, &card->devices, list) { - if (dev->device_data != device_data) - continue; + dev = look_for_dev(card, device_data); + if (dev) { if (dev->state == SNDRV_DEV_BUILD && dev->ops->dev_register) { if ((err = dev->ops->dev_register(dev)) < 0) return err; @@ -177,7 +193,6 @@ int snd_device_register(struct snd_card *card, void *device_data) snd_BUG(); return -ENXIO; } - EXPORT_SYMBOL(snd_device_register); /* @@ -212,7 +227,7 @@ int snd_device_disconnect_all(struct snd_card *card) if (snd_BUG_ON(!card)) return -ENXIO; - list_for_each_entry(dev, &card->devices, list) { + list_for_each_entry_reverse(dev, &card->devices, list) { if (snd_device_disconnect(card, dev->device_data) < 0) err = -ENXIO; } @@ -223,24 +238,17 @@ int snd_device_disconnect_all(struct snd_card *card) * release all the devices on the card. * called from init.c */ -int snd_device_free_all(struct snd_card *card, enum snd_device_cmd cmd) +int snd_device_free_all(struct snd_card *card) { - struct snd_device *dev; - int err; - unsigned int range_low, range_high, type; + struct snd_device *dev, *next; + int ret = 0; if (snd_BUG_ON(!card)) return -ENXIO; - range_low = (unsigned int)cmd * SNDRV_DEV_TYPE_RANGE_SIZE; - range_high = range_low + SNDRV_DEV_TYPE_RANGE_SIZE - 1; - __again: - list_for_each_entry(dev, &card->devices, list) { - type = (unsigned int)dev->type; - if (type >= range_low && type <= range_high) { - if ((err = snd_device_free(card, dev->device_data)) < 0) - return err; - goto __again; - } + list_for_each_entry_safe_reverse(dev, next, &card->devices, list) { + int err = snd_device_free(card, dev->device_data); + if (err < 0) + ret = err; } - return 0; + return ret; } diff --git a/sound/core/init.c b/sound/core/init.c index b7085eb1907..9e7f17b72fb 100644 --- a/sound/core/init.c +++ b/sound/core/init.c @@ -266,7 +266,7 @@ int snd_card_new(struct device *parent, int idx, const char *xid, return 0; __error_ctl: - snd_device_free_all(card, SNDRV_DEV_CMD_PRE); + snd_device_free_all(card); __error: put_device(&card->card_dev); return err; @@ -454,16 +454,8 @@ static int snd_card_do_free(struct snd_card *card) if (snd_mixer_oss_notify_callback) snd_mixer_oss_notify_callback(card, SND_MIXER_OSS_NOTIFY_FREE); #endif - if (snd_device_free_all(card, SNDRV_DEV_CMD_PRE) < 0) { - dev_err(card->dev, "unable to free all devices (pre)\n"); - /* Fatal, but this situation should never occur */ - } - if (snd_device_free_all(card, SNDRV_DEV_CMD_NORMAL) < 0) { - dev_err(card->dev, "unable to free all devices (normal)\n"); - /* Fatal, but this situation should never occur */ - } - if (snd_device_free_all(card, SNDRV_DEV_CMD_POST) < 0) { - dev_err(card->dev, "unable to free all devices (post)\n"); + if (snd_device_free_all(card) < 0) { + dev_err(card->dev, "unable to free all devices\n"); /* Fatal, but this situation should never occur */ } if (card->private_free) |