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Commit 5be1efb4 authored by Takashi Iwai's avatar Takashi Iwai
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ALSA: usx2y: Fix unlocked snd_pcm_stop() call 



snd_pcm_stop() must be called in the PCM substream lock context.

Cc: <stable@vger.kernel.org>
Signed-off-by: default avatarTakashi Iwai <tiwai@suse.de>
parent 9538aa46

sound/usb/usx2y/usbusx2yaudio.c

+4 −0
Original line number Diff line number Diff line
@@ -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;



				snd_pcm_stream_lock_irqsave(subs->pcm_substream, flags);

				snd_pcm_stop(subs->pcm_substream, SNDRV_PCM_STATE_XRUN);

				snd_pcm_stream_unlock_irqrestore(subs->pcm_substream, flags);

			}

			for (u = 0; u < NRURBS; u++) {

				struct urb *urb = subs->urb[u];