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ALSA: emu10k1: don't forget to reset reclaimed synth voices

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The subsequent allocation may still fail after freeing some voices, so
we shouldn't leave them in their programmed state.

Signed-off-by: Oswald Buddenhagen <oswald.buddenhagen@gmx.de>
Link: https://lore.kernel.org/r/20230518140947.3725394-3-oswald.buddenhagen@gmx.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Oswald Buddenhagen 2023-05-18 16:09:42 +02:00 committed by Takashi Iwai
parent f26a4cf087
commit 3eb5b1d0a1
1 changed files with 12 additions and 10 deletions
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22
sound/pci/emu10k1/voice.c
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@ -98,6 +98,15 @@ static int voice_alloc(struct snd_emu10k1 *emu, int type, int number,
return 0;
}
static void voice_free(struct snd_emu10k1 *emu,
struct snd_emu10k1_voice *pvoice)
{
snd_emu10k1_voice_init(emu, pvoice->number);
pvoice->interrupt = NULL;
pvoice->use = pvoice->pcm = pvoice->synth = pvoice->midi = pvoice->efx = 0;
pvoice->epcm = NULL;
}
int snd_emu10k1_voice_alloc(struct snd_emu10k1 *emu, int type, int number,
struct snd_emu10k1_voice **rvoice)
{
@ -118,12 +127,8 @@ int snd_emu10k1_voice_alloc(struct snd_emu10k1 *emu, int type, int number,
/* free a voice from synth */
if (emu->get_synth_voice) {
result = emu->get_synth_voice(emu);
if (result >= 0) {
struct snd_emu10k1_voice *pvoice = &emu->voices[result];
pvoice->interrupt = NULL;
pvoice->use = pvoice->pcm = pvoice->synth = pvoice->midi = pvoice->efx = 0;
pvoice->epcm = NULL;
}
if (result >= 0)
voice_free(emu, &emu->voices[result]);
}
if (result < 0)
break;
@ -143,10 +148,7 @@ int snd_emu10k1_voice_free(struct snd_emu10k1 *emu,
if (snd_BUG_ON(!pvoice))
return -EINVAL;
spin_lock_irqsave(&emu->voice_lock, flags);
pvoice->interrupt = NULL;
pvoice->use = pvoice->pcm = pvoice->synth = pvoice->midi = pvoice->efx = 0;
pvoice->epcm = NULL;
snd_emu10k1_voice_init(emu, pvoice->number);
voice_free(emu, pvoice);
spin_unlock_irqrestore(&emu->voice_lock, flags);
return 0;
}