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ALSA: Introduce snd_card_create()

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Introduced snd_card_create() function as a replacement of snd_card_new().
The new function returns a negative error code so that the probe callback
can return the proper error code, while snd_card_new() can give only NULL
check.

The old snd_card_new() is still provided as an inline function but with
__deprecated attribute.  It'll be removed soon later.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Takashi Iwai
2008-12-28 16:32:08 +01:00
committed by Takashi Iwai
parent c59765042f
commit 53fb1e6359
2 changed files with 44 additions and 17 deletions
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14
include/sound/core.h
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@@ -296,8 +296,20 @@ int snd_card_locked(int card);
extern int (*snd_mixer_oss_notify_callback)(struct snd_card *card, int cmd);
#endif
int snd_card_create(int idx, const char *id,
struct module *module, int extra_size,
struct snd_card **card_ret);
static inline __deprecated
struct snd_card *snd_card_new(int idx, const char *id,
struct module *module, int extra_size);
struct module *module, int extra_size)
{
struct snd_card *card;
if (snd_card_create(idx, id, module, extra_size, &card) < 0)
return NULL;
return card;
}
int snd_card_disconnect(struct snd_card *card);
int snd_card_free(struct snd_card *card);
int snd_card_free_when_closed(struct snd_card *card);