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[ALSA] echoaudio - convert from semaphore to mutex
Converted from semaphore to mutex. Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Jaroslav Kysela <perex@perex.cz>
This commit is contained in:
parent
e3cde64af4
commit
befceea90b
2 changed files with 10 additions and 10 deletions
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@ -378,7 +378,7 @@ static int pcm_digital_in_open(struct snd_pcm_substream *substream)
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DE_ACT(("pcm_digital_in_open\n"));
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max_channels = num_digital_busses_in(chip) - substream->number;
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down(&chip->mode_mutex);
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mutex_lock(&chip->mode_mutex);
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if (chip->digital_mode == DIGITAL_MODE_ADAT)
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err = pcm_open(substream, max_channels);
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else /* If the card has ADAT, subtract the 6 channels
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@ -405,7 +405,7 @@ static int pcm_digital_in_open(struct snd_pcm_substream *substream)
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chip->can_set_rate=0;
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din_exit:
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up(&chip->mode_mutex);
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mutex_unlock(&chip->mode_mutex);
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return err;
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}
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@ -420,7 +420,7 @@ static int pcm_digital_out_open(struct snd_pcm_substream *substream)
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DE_ACT(("pcm_digital_out_open\n"));
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max_channels = num_digital_busses_out(chip) - substream->number;
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down(&chip->mode_mutex);
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mutex_lock(&chip->mode_mutex);
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if (chip->digital_mode == DIGITAL_MODE_ADAT)
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err = pcm_open(substream, max_channels);
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else /* If the card has ADAT, subtract the 6 channels
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@ -447,7 +447,7 @@ static int pcm_digital_out_open(struct snd_pcm_substream *substream)
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if (atomic_read(&chip->opencount) > 1 && chip->rate_set)
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chip->can_set_rate=0;
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dout_exit:
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up(&chip->mode_mutex);
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mutex_unlock(&chip->mode_mutex);
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return err;
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}
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@ -1420,7 +1420,7 @@ static int snd_echo_digital_mode_put(struct snd_kcontrol *kcontrol,
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if (dmode != chip->digital_mode) {
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/* mode_mutex is required to make this operation atomic wrt
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pcm_digital_*_open() and set_input_clock() functions. */
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down(&chip->mode_mutex);
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mutex_lock(&chip->mode_mutex);
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/* Do not allow the user to change the digital mode when a pcm
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device is open because it also changes the number of channels
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@ -1439,7 +1439,7 @@ static int snd_echo_digital_mode_put(struct snd_kcontrol *kcontrol,
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if (changed >= 0)
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changed = 1; /* No errors */
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}
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up(&chip->mode_mutex);
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mutex_unlock(&chip->mode_mutex);
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}
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return changed;
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}
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@ -1566,12 +1566,12 @@ static int snd_echo_clock_source_put(struct snd_kcontrol *kcontrol,
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return -EINVAL;
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dclock = chip->clock_source_list[eclock];
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if (chip->input_clock != dclock) {
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down(&chip->mode_mutex);
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mutex_lock(&chip->mode_mutex);
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spin_lock_irq(&chip->lock);
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if ((changed = set_input_clock(chip, dclock)) == 0)
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changed = 1; /* no errors */
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spin_unlock_irq(&chip->lock);
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up(&chip->mode_mutex);
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mutex_unlock(&chip->mode_mutex);
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}
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if (changed < 0)
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@ -1972,7 +1972,7 @@ static __devinit int snd_echo_create(struct snd_card *card,
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return err;
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}
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atomic_set(&chip->opencount, 0);
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init_MUTEX(&chip->mode_mutex);
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mutex_init(&chip->mode_mutex);
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chip->can_set_rate = 1;
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*rchip = chip;
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/* Init done ! */
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@ -361,7 +361,7 @@ struct echoaudio {
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spinlock_t lock;
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struct snd_pcm_substream *substream[DSP_MAXPIPES];
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int last_period[DSP_MAXPIPES];
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struct semaphore mode_mutex;
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struct mutex mode_mutex;
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u16 num_digital_modes, digital_mode_list[6];
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u16 num_clock_sources, clock_source_list[10];
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atomic_t opencount;
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