Complete() will be run with interrupt enabled, so change to
spin_lock_irqsave().

Cc: Jaroslav Kysela <pe...@perex.cz>
Cc: Takashi Iwai <ti...@suse.de>
Cc: alsa-de...@alsa-project.org
Signed-off-by: Ming Lei <ming....@canonical.com>
---
 sound/usb/usx2y/usbusx2yaudio.c |    4 ++++
 1 file changed, 4 insertions(+)

diff --git a/sound/usb/usx2y/usbusx2yaudio.c b/sound/usb/usx2y/usbusx2yaudio.c
index 4967fe9..e2ee893 100644
--- a/sound/usb/usx2y/usbusx2yaudio.c
+++ b/sound/usb/usx2y/usbusx2yaudio.c
@@ -273,7 +273,11 @@ static void usX2Y_clients_stop(struct usX2Ydev *usX2Y)
                struct snd_usX2Y_substream *subs = usX2Y->subs[s];
                if (subs) {
                        if (atomic_read(&subs->state) >= state_PRERUNNING) {
+                               unsigned long flags;
+
+                               local_irq_save(flags);
                                snd_pcm_stop(subs->pcm_substream, 
SNDRV_PCM_STATE_XRUN);
+                               local_irq_restore(flags);
                        }
                        for (u = 0; u < NRURBS; u++) {
                                struct urb *urb = subs->urb[u];
-- 
1.7.9.5

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