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ALSA: Drop snd_get_device() helper 

Since the device is no longer hidden but embedded into each component,
we no longer need snd_get_device().  Let's drop it and relevant codes.

Reviewed-by: Jaroslav Kysela <perex@perex.cz>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Takashi Iwai 2015-01-30 08:39:40 +01:00
parent 40a4b26385
commit 830953c072
2 changed files with 0 additions and 44 deletions
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1
include/sound/core.h
View File

@ -214,7 +214,6 @@ int snd_register_device(int type, struct snd_card *card, int dev,
void *private_data, struct device *device);
int snd_unregister_device(struct device *dev);
void *snd_lookup_minor_data(unsigned int minor, int type);
struct device *snd_get_device(int type, struct snd_card *card, int dev);
#ifdef CONFIG_SND_OSSEMUL
int snd_register_oss_device(int type, struct snd_card *card, int dev,

43
sound/core/sound.c
View File

@ -303,24 +303,6 @@ int snd_register_device(int type, struct snd_card *card, int dev,
}
EXPORT_SYMBOL(snd_register_device);
/* find the matching minor record
* return the index of snd_minor, or -1 if not found
*/
static int find_snd_minor(int type, struct snd_card *card, int dev)
{
int cardnum, minor;
struct snd_minor *mptr;
cardnum = card ? card->number : -1;
for (minor = 0; minor < ARRAY_SIZE(snd_minors); ++minor)
if ((mptr = snd_minors[minor]) != NULL &&
mptr->type == type &&
mptr->card == cardnum &&
mptr->device == dev)
return minor;
return -1;
}
/**
* snd_unregister_device - unregister the device on the given card
* @dev: the device instance
@ -352,31 +334,6 @@ int snd_unregister_device(struct device *dev)
}
EXPORT_SYMBOL(snd_unregister_device);
/**
* snd_get_device - get the assigned device to the given type and device number
* @type: the device type, SNDRV_DEVICE_TYPE_XXX
* @card:the card instance
* @dev: the device index
*
* The caller needs to release it via put_device() after using it.
*/
struct device *snd_get_device(int type, struct snd_card *card, int dev)
{
int minor;
struct device *d = NULL;
mutex_lock(&sound_mutex);
minor = find_snd_minor(type, card, dev);
if (minor >= 0) {
d = snd_minors[minor]->dev;
if (d)
get_device(d);
}
mutex_unlock(&sound_mutex);
return d;
}
EXPORT_SYMBOL(snd_get_device);
#ifdef CONFIG_PROC_FS
/*
* INFO PART