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ALSA: timer: Code cleanup 

commit c3b1681375dc6e71d89a3ae00cc3ce9e775a8917 upstream.

This is a minor code cleanup without any functional changes:
- Kill keep_flag argument from _snd_timer_stop(), as all callers pass
  only it false.
- Remove redundant NULL check in _snd_timer_stop().

Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Takashi Iwai 2016-01-14 17:01:46 +01:00 committed by Greg Kroah-Hartman
parent e53ec49239
commit 51e9bd72a0
1 changed files with 11 additions and 17 deletions
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28
sound/core/timer.c
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@ -300,8 +300,7 @@ int snd_timer_open(struct snd_timer_instance **ti,
return 0;
}
static int _snd_timer_stop(struct snd_timer_instance *timeri,
int keep_flag, int event);
static int _snd_timer_stop(struct snd_timer_instance *timeri, int event);
/*
* close a timer instance
@ -343,7 +342,7 @@ int snd_timer_close(struct snd_timer_instance *timeri)
spin_unlock_irq(&timer->lock);
mutex_lock(&register_mutex);
list_del(&timeri->open_list);
if (timer && list_empty(&timer->open_list_head) &&
if (list_empty(&timer->open_list_head) &&
timer->hw.close)
timer->hw.close(timer);
/* remove slave links */
@ -483,8 +482,7 @@ int snd_timer_start(struct snd_timer_instance *timeri, unsigned int ticks)
return result;
}
static int _snd_timer_stop(struct snd_timer_instance * timeri,
int keep_flag, int event)
static int _snd_timer_stop(struct snd_timer_instance *timeri, int event)
{
struct snd_timer *timer;
unsigned long flags;
@ -493,13 +491,11 @@ static int _snd_timer_stop(struct snd_timer_instance * timeri,
return -ENXIO;
if (timeri->flags & SNDRV_TIMER_IFLG_SLAVE) {
if (!keep_flag) {
spin_lock_irqsave(&slave_active_lock, flags);
timeri->flags &= ~SNDRV_TIMER_IFLG_RUNNING;
list_del_init(&timeri->ack_list);
list_del_init(&timeri->active_list);
spin_unlock_irqrestore(&slave_active_lock, flags);
}
spin_lock_irqsave(&slave_active_lock, flags);
timeri->flags &= ~SNDRV_TIMER_IFLG_RUNNING;
list_del_init(&timeri->ack_list);
list_del_init(&timeri->active_list);
spin_unlock_irqrestore(&slave_active_lock, flags);
goto __end;
}
timer = timeri->timer;
@ -520,9 +516,7 @@ static int _snd_timer_stop(struct snd_timer_instance * timeri,
}
}
}
if (!keep_flag)
timeri->flags &=
~(SNDRV_TIMER_IFLG_RUNNING | SNDRV_TIMER_IFLG_START);
timeri->flags &= ~(SNDRV_TIMER_IFLG_RUNNING | SNDRV_TIMER_IFLG_START);
spin_unlock_irqrestore(&timer->lock, flags);
__end:
if (event != SNDRV_TIMER_EVENT_RESOLUTION)
@ -541,7 +535,7 @@ int snd_timer_stop(struct snd_timer_instance *timeri)
unsigned long flags;
int err;
err = _snd_timer_stop(timeri, 0, SNDRV_TIMER_EVENT_STOP);
err = _snd_timer_stop(timeri, SNDRV_TIMER_EVENT_STOP);
if (err < 0)
return err;
timer = timeri->timer;
@ -585,7 +579,7 @@ int snd_timer_continue(struct snd_timer_instance *timeri)
*/
int snd_timer_pause(struct snd_timer_instance * timeri)
{
return _snd_timer_stop(timeri, 0, SNDRV_TIMER_EVENT_PAUSE);
return _snd_timer_stop(timeri, SNDRV_TIMER_EVENT_PAUSE);
}
/*