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ALSA: timer: Make snd_timer_close() returning void 

The function doesn't return any useful value, so let's make it void to
be clearer.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
Link: https://lore.kernel.org/r/20191107192008.32331-3-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Takashi Iwai 2019-11-07 20:20:07 +01:00
parent ebfc6de29a
commit 33bbb8a0ec
2 changed files with 8 additions and 12 deletions
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2
include/sound/timer.h
View File

@ -119,7 +119,7 @@ int snd_timer_global_free(struct snd_timer *timer);
int snd_timer_global_register(struct snd_timer *timer); int snd_timer_global_register(struct snd_timer *timer);
int snd_timer_open(struct snd_timer_instance **ti, char *owner, struct snd_timer_id *tid, unsigned int slave_id); int snd_timer_open(struct snd_timer_instance **ti, char *owner, struct snd_timer_id *tid, unsigned int slave_id);
int snd_timer_close(struct snd_timer_instance *timeri); void snd_timer_close(struct snd_timer_instance *timeri);
unsigned long snd_timer_resolution(struct snd_timer_instance *timeri); unsigned long snd_timer_resolution(struct snd_timer_instance *timeri);
int snd_timer_start(struct snd_timer_instance *timeri, unsigned int ticks); int snd_timer_start(struct snd_timer_instance *timeri, unsigned int ticks);
int snd_timer_stop(struct snd_timer_instance *timeri); int snd_timer_stop(struct snd_timer_instance *timeri);

14
sound/core/timer.c
View File

@ -229,7 +229,7 @@ static int snd_timer_check_master(struct snd_timer_instance *master)
return err < 0 ? err : 0; return err < 0 ? err : 0;
} }
static int snd_timer_close_locked(struct snd_timer_instance *timeri, static void snd_timer_close_locked(struct snd_timer_instance *timeri,
struct device **card_devp_to_put); struct device **card_devp_to_put);
/* /*
@ -351,7 +351,7 @@ EXPORT_SYMBOL(snd_timer_open);
* close a timer instance * close a timer instance
* call this with register_mutex down. * call this with register_mutex down.
*/ */
static int snd_timer_close_locked(struct snd_timer_instance *timeri, static void snd_timer_close_locked(struct snd_timer_instance *timeri,
struct device **card_devp_to_put) struct device **card_devp_to_put)
{ {
struct snd_timer *timer = timeri->timer; struct snd_timer *timer = timeri->timer;
@ -414,28 +414,24 @@ static int snd_timer_close_locked(struct snd_timer_instance *timeri,
*card_devp_to_put = &timer->card->card_dev; *card_devp_to_put = &timer->card->card_dev;
module_put(timer->module); module_put(timer->module);
} }
return 0;
} }
/* /*
* close a timer instance * close a timer instance
*/ */
int snd_timer_close(struct snd_timer_instance *timeri) void snd_timer_close(struct snd_timer_instance *timeri)
{ {
struct device *card_dev_to_put = NULL; struct device *card_dev_to_put = NULL;
int err;
if (snd_BUG_ON(!timeri)) if (snd_BUG_ON(!timeri))
return -ENXIO; return;
mutex_lock(&register_mutex); mutex_lock(&register_mutex);
err = snd_timer_close_locked(timeri, &card_dev_to_put); snd_timer_close_locked(timeri, &card_dev_to_put);
mutex_unlock(&register_mutex); mutex_unlock(&register_mutex);
/* put_device() is called after unlock for avoiding deadlock */ /* put_device() is called after unlock for avoiding deadlock */
if (card_dev_to_put) if (card_dev_to_put)
put_device(card_dev_to_put); put_device(card_dev_to_put);
return err;
} }
EXPORT_SYMBOL(snd_timer_close); EXPORT_SYMBOL(snd_timer_close);