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ALSA: firewire-speakers: fix hang when unplugging a running device 

When aborting a PCM stream, the xrun is signaled only if the stream is
running.  When disconnecting a PCM stream, calling snd_card_disconnect()
too early would change the stream into a non-running state and thus
prevent the xrun from being noticed by user space.

To prevent this, move the snd_card_disconnect() call after the xrun.

Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Clemens Ladisch 2011-03-30 08:24:00 +02:00 committed by Takashi Iwai
parent c6b358748e
commit 6ff674615c
1 changed files with 1 additions and 2 deletions
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3
sound/firewire/speakers.c
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@ -778,10 +778,9 @@ static int __devexit fwspk_remove(struct device *dev)
{
struct fwspk *fwspk = dev_get_drvdata(dev);
snd_card_disconnect(fwspk->card);
mutex_lock(&fwspk->mutex);
amdtp_out_stream_pcm_abort(&fwspk->stream);
snd_card_disconnect(fwspk->card);
fwspk_stop_stream(fwspk);
mutex_unlock(&fwspk->mutex);