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ALSA: hda - Fix missing ELD update at unplugging 

i915 get_eld ops may return an error when no encoder is connected, and
currently we regard the error as fatal and skip the whole ELD
handling.  This ended up with the missing ELD update at unplugging.

This patch fixes the issue by treating the error as the unplugged
state, instead of skipping the rest.

Reported-by: Libin Yang <libin.yang@linux.intel.com>
Cc: <stable@vger.kernel.org> # v4.5
Signed-off-by: Takashi Iwai <tiwai@suse.de>
steinar/wifi_calib_4_9_kernel
Takashi Iwai 2016-03-21 16:07:30 +01:00
parent 0ef21100ae
commit c64c1437af
1 changed files with 1 additions and 2 deletions
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3
sound/pci/hda/patch_hdmi.c
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@ -1484,11 +1484,10 @@ static void sync_eld_via_acomp(struct hda_codec *codec,
int size;
mutex_lock(&per_pin->lock);
eld->monitor_present = false;
size = snd_hdac_acomp_get_eld(&codec->bus->core, per_pin->pin_nid,
&eld->monitor_present, eld->eld_buffer,
ELD_MAX_SIZE);
if (size < 0)
goto unlock;
if (size > 0) {
size = min(size, ELD_MAX_SIZE);
if (snd_hdmi_parse_eld(codec, &eld->info,