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Commit b0db6063 authored by Takashi Iwai's avatar Takashi Iwai
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ALSA: usb-audio: process pending stop at PCM hw_free and close 



PCM hw_free and close should wait until all the pending stop
operations have been finished.  Basically only PCM trigger callback
should use non-wait calls.

Signed-off-by: default avatarTakashi Iwai <tiwai@suse.de>
parent b2eb950d

sound/usb/pcm.c

+2 −2
Original line number Diff line number Diff line
@@ -446,7 +446,7 @@ static int configure_endpoint(struct snd_usb_substream *subs) 
	int ret;



	/* format changed */

	stop_endpoints(subs, false);

	stop_endpoints(subs, true);

	ret = snd_usb_endpoint_set_params(subs->data_endpoint,

					  subs->pcm_format,

					  subs->channels,
@@ -1012,7 +1012,7 @@ static int snd_usb_pcm_close(struct snd_pcm_substream *substream, int direction) 
	struct snd_usb_stream *as = snd_pcm_substream_chip(substream);

	struct snd_usb_substream *subs = &as->substream[direction];



	stop_endpoints(subs, false);

	stop_endpoints(subs, true);



	if (!as->chip->shutdown && subs->interface >= 0) {

		usb_set_interface(subs->dev, subs->interface, 0);