UPSTREAM: 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().

Bug: 37240993
Change-Id: Idc3778ca1cd62b8c22e2a57b3c1130fe7b3d13f6
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Siqi Lin <siqilin@google.com>
This commit is contained in:
Takashi Iwai 2016-01-14 17:01:46 +01:00 committed by Artem Borisov
parent b4a01e21d7
commit 85b1355a58

View file

@ -304,8 +304,7 @@ 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
@ -347,7 +346,7 @@ 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 */
@ -492,8 +491,7 @@ 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;
@ -502,13 +500,11 @@ 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;
@ -533,9 +529,7 @@ 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)
@ -554,7 +548,7 @@ 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;
@ -600,7 +594,7 @@ 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);
}
/*