From: Takashi Iwai Date: Wed, 8 Jul 2015 07:22:10 +0000 (+0200) Subject: ALSA: hda - Fix a wrong busy check in alt PCM open X-Git-Url: http://drtracing.org/?a=commitdiff_plain;h=d1f15e06b2af57228d11e33e06a172ff58f5bc1c;p=deliverable%2Flinux.git 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 Signed-off-by: Takashi Iwai --- diff --git a/sound/pci/hda/hda_generic.c b/sound/pci/hda/hda_generic.c index ac0db1679f09..b077bb644434 100644 --- a/sound/pci/hda/hda_generic.c +++ b/sound/pci/hda/hda_generic.c @@ -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;