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authorTakashi Iwai <tiwai@suse.de>2021-02-06 23:30:52 +0300
committerTakashi Iwai <tiwai@suse.de>2021-02-08 18:00:16 +0300
commit257d2d7e9e798305d65825cb82b0a7d1c0511e89 (patch)
treef1d1e65ad416ef861172c3ea9e4aa8b5d9ec4599 /sound
parent5c2b301476ec493be15546f05e23414e2aa9d472 (diff)
downloadlinux-257d2d7e9e798305d65825cb82b0a7d1c0511e89.tar.xz
ALSA: usb-audio: Don't avoid stopping the stream at disconnection
In the later patch, we're going to issue the PCM sync_stop calls at disconnection. But currently the USB-audio driver can't handle it because it has a check of shutdown flag for stopping the URBs. This is basically superfluous (the stopping URBs are safe at disconnection state), so let's drop the check. Fixes: dc5eafe7787c ("ALSA: usb-audio: Support PCM sync_stop") Cc: <stable@vger.kernel.org> Link: https://lore.kernel.org/r/20210206203052.15606-4-tiwai@suse.de Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound')
-rw-r--r--sound/usb/endpoint.c3
-rw-r--r--sound/usb/pcm.c5
2 files changed, 1 insertions, 7 deletions
diff --git a/sound/usb/endpoint.c b/sound/usb/endpoint.c
index 4390075b2c6f..102d53515a76 100644
--- a/sound/usb/endpoint.c
+++ b/sound/usb/endpoint.c
@@ -890,9 +890,6 @@ static int stop_urbs(struct snd_usb_endpoint *ep, bool force)
{
unsigned int i;
- if (!force && atomic_read(&ep->chip->shutdown)) /* to be sure... */
- return -EBADFD;
-
if (!force && atomic_read(&ep->running))
return -EBUSY;
diff --git a/sound/usb/pcm.c b/sound/usb/pcm.c
index dcadf8f164b2..bf5a0f3c1fad 100644
--- a/sound/usb/pcm.c
+++ b/sound/usb/pcm.c
@@ -270,10 +270,7 @@ static int snd_usb_pcm_sync_stop(struct snd_pcm_substream *substream)
{
struct snd_usb_substream *subs = substream->runtime->private_data;
- if (!snd_usb_lock_shutdown(subs->stream->chip)) {
- sync_pending_stops(subs);
- snd_usb_unlock_shutdown(subs->stream->chip);
- }
+ sync_pending_stops(subs);
return 0;
}