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ALSA: hda - Fix a wrong busy check in alt PCM open 

Currently, the alt PCM open callback returns -EBUSY when an
independent HP is turned off, supposing that it conflicts with the
main PCM.  However, obviously, this check is wrong when the
independent HP itself isn't enabled but the alt PCM was explicitly
created via alc_dac_nid by a codec driver.

Reported-and-tested-by: Kailang Yang <kailang@realtek.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
hifive-unleashed-5.1
Takashi Iwai 2015-07-08 09:22:10 +02:00
parent e828b23734
commit d1f15e06b2
1 changed files with 1 additions and 1 deletions
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2
sound/pci/hda/hda_generic.c
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@ -5175,7 +5175,7 @@ static int alt_playback_pcm_open(struct hda_pcm_stream *hinfo,
int err = 0;
mutex_lock(&spec->pcm_mutex);
if (!spec->indep_hp_enabled)
if (spec->indep_hp && !spec->indep_hp_enabled)
err = -EBUSY;
else
spec->active_streams |= 1 << STREAM_INDEP_HP;