Commit d1f15e06 authored Jul 08, 2015 by Takashi Iwai

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>

parent e828b237

sound/pci/hda/hda_generic.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -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;