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ALSA: hda - block HDMI jack reports while repolling

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This fixes a race condition in case several monitors are being
repolled in parallel.

Signed-off-by: David Henningsson <david.henningsson@canonical.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
David Henningsson 2013-11-07 13:38:25 +01:00 committed by Takashi Iwai
parent 0f568959de
commit 464837a7bc
1 changed files with 6 additions and 0 deletions
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6
sound/pci/hda/patch_hdmi.c
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@ -1477,6 +1477,7 @@ static int hdmi_read_pin_conn(struct hda_codec *codec, int pin_idx)
static bool hdmi_present_sense(struct hdmi_spec_per_pin *per_pin, int repoll)
{
struct hda_jack_tbl *jack;
struct hda_codec *codec = per_pin->codec;
struct hdmi_spec *spec = codec->spec;
struct hdmi_eld *eld = &spec->temp_eld;
@ -1564,6 +1565,11 @@ static bool hdmi_present_sense(struct hdmi_spec_per_pin *per_pin, int repoll)
ret = true; /* AMD codecs create ELD by itself */
else
ret = !repoll || !pin_eld->monitor_present || pin_eld->eld_valid;
jack = snd_hda_jack_tbl_get(codec, pin_nid);
if (jack)
jack->block_report = !ret;
mutex_unlock(&per_pin->lock);
return ret;
}