diff options
Diffstat (limited to 'sound/core/init.c')
| -rw-r--r-- | sound/core/init.c | 28 |
1 files changed, 18 insertions, 10 deletions
diff --git a/sound/core/init.c b/sound/core/init.c index baef2688d0cf..d61bde1225f2 100644 --- a/sound/core/init.c +++ b/sound/core/init.c @@ -111,28 +111,36 @@ static int get_slot_from_bitmask(int mask, int (*check)(struct module *, int), return mask; /* unchanged */ } -/* the default release callback set in snd_device_initialize() below; - * this is just NOP for now, as almost all jobs are already done in - * dev_free callback of snd_device chain instead. - */ -static void default_release(struct device *dev) +/* the default release callback set in snd_device_alloc() */ +static void default_release_alloc(struct device *dev) { + kfree(dev); } /** - * snd_device_initialize - Initialize struct device for sound devices - * @dev: device to initialize + * snd_device_alloc - Allocate and initialize struct device for sound devices + * @dev_p: pointer to store the allocated device * @card: card to assign, optional + * + * For releasing the allocated device, call put_device(). */ -void snd_device_initialize(struct device *dev, struct snd_card *card) +int snd_device_alloc(struct device **dev_p, struct snd_card *card) { + struct device *dev; + + *dev_p = NULL; + dev = kzalloc(sizeof(*dev), GFP_KERNEL); + if (!dev) + return -ENOMEM; device_initialize(dev); if (card) dev->parent = &card->card_dev; dev->class = &sound_class; - dev->release = default_release; + dev->release = default_release_alloc; + *dev_p = dev; + return 0; } -EXPORT_SYMBOL_GPL(snd_device_initialize); +EXPORT_SYMBOL_GPL(snd_device_alloc); static int snd_card_init(struct snd_card *card, struct device *parent, int idx, const char *xid, struct module *module, |