ALSA: msnd: Support PCM sync_stop

The driver invokes snd_pcm_period_elapsed() simply from the interrupt
handler.  Set card->sync_irq for enabling the missing sync_stop PCM
operation.

Link: https://lore.kernel.org/r/20191210063454.31603-44-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>

diff --git a/sound/isa/msnd/msnd_pinnacle.c b/sound/isa/msnd/msnd_pinnacle.c
index e435ebd..9e7f03e 100644 (file)
--- a/sound/isa/msnd/msnd_pinnacle.c
+++ b/sound/isa/msnd/msnd_pinnacle.c
@@ -538,6 +538,7 @@ static int snd_msnd_attach(struct snd_card *card)
                printk(KERN_ERR LOGNAME ": Couldn't grab IRQ %d\n", chip->irq);
                return err;
        }
+       card->sync_irq = chip->irq;
        if (request_region(chip->io, DSP_NUMIO, card->shortname) == NULL) {
                free_irq(chip->irq, chip);
                return -EBUSY;