Commit 9538aa46 authored by Takashi Iwai's avatar Takashi Iwai
Browse files

ALSA: ua101: Fix unlocked snd_pcm_stop() call 



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

Cc: <stable@vger.kernel.org>
Acked-by: default avatarClemens Ladisch <clemens@ladisch.de>
Signed-off-by: default avatarTakashi Iwai <tiwai@suse.de>
parent 5b9ab3f7

sound/usb/misc/ua101.c

+12 −2
Original line number Diff line number Diff line
@@ -613,14 +613,24 @@ static int start_usb_playback(struct ua101 *ua) 


static void abort_alsa_capture(struct ua101 *ua)

{

	if (test_bit(ALSA_CAPTURE_RUNNING, &ua->states))

	unsigned long flags;



	if (test_bit(ALSA_CAPTURE_RUNNING, &ua->states)) {

		snd_pcm_stream_lock_irqsave(ua->capture.substream, flags);

		snd_pcm_stop(ua->capture.substream, SNDRV_PCM_STATE_XRUN);

		snd_pcm_stream_unlock_irqrestore(ua->capture.substream, flags);

	}

}



static void abort_alsa_playback(struct ua101 *ua)

{

	if (test_bit(ALSA_PLAYBACK_RUNNING, &ua->states))

	unsigned long flags;



	if (test_bit(ALSA_PLAYBACK_RUNNING, &ua->states)) {

		snd_pcm_stream_lock_irqsave(ua->playback.substream, flags);

		snd_pcm_stop(ua->playback.substream, SNDRV_PCM_STATE_XRUN);

		snd_pcm_stream_unlock_irqrestore(ua->playback.substream, flags);

	}

}



static int set_stream_hw(struct ua101 *ua, struct snd_pcm_substream *substream,