[PATCH 45/50] sound: usb: usx2y: spin_lock in complete() cleanup
From: Ming Lei <hidden>
Date: 2013-07-11 09:12:38
Also in:
alsa-devel, linux-media, linux-wireless, netdev
Subsystem:
sound, the rest · Maintainers:
Jaroslav Kysela, Takashi Iwai, Linus Torvalds
Complete() will be run with interrupt enabled, so change to spin_lock_irqsave(). Cc: Jaroslav Kysela <perex@perex.cz> Cc: Takashi Iwai <redacted> Cc: alsa-devel@alsa-project.org Signed-off-by: Ming Lei <redacted> --- 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