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| author | Takashi Iwai <tiwai@suse.de> | 2016-04-13 09:45:53 +0200 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2016-04-13 09:53:46 +0200 |
| commit | c44da62b55bb453052869ab095bcda7aa0bd6bba (patch) | |
| tree | bd5c759f68241d3d330abbec0b9f5153f387dd85 /sound/pci | |
| parent | ALSA: hda - Fix regression of monitor_present flag in eld proc file (diff) | |
| download | linux-c44da62b55bb453052869ab095bcda7aa0bd6bba.tar.xz linux-c44da62b55bb453052869ab095bcda7aa0bd6bba.zip | |
ALSA: hda - Fix inconsistent monitor_present state until repoll
While the previous commit fixed the missing monitor_present flag
update, it may be still in an inconsistent state while the driver
repolls: the flag itself is updated, but the eld_valid flag and the
contents don't follow until the repoll finishes (and may be repeated
for a few times).
The basic problem is that pin_eld->monitor_present is updated in the
caller side. This should have been updated only in update_eld(). So,
the proper fix is to avoid accessing pin_eld but only spec->temp_eld.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/pci')
| -rw-r--r-- | sound/pci/hda/patch_hdmi.c | 11 |
1 files changed, 4 insertions, 7 deletions
diff --git a/sound/pci/hda/patch_hdmi.c b/sound/pci/hda/patch_hdmi.c index 9de114df270b..c83c1a8d9742 100644 --- a/sound/pci/hda/patch_hdmi.c +++ b/sound/pci/hda/patch_hdmi.c @@ -1396,7 +1396,6 @@ static bool hdmi_present_sense_via_verbs(struct hdmi_spec_per_pin *per_pin, struct hda_codec *codec = per_pin->codec; struct hdmi_spec *spec = codec->spec; struct hdmi_eld *eld = &spec->temp_eld; - struct hdmi_eld *pin_eld = &per_pin->sink_eld; hda_nid_t pin_nid = per_pin->pin_nid; /* * Always execute a GetPinSense verb here, even when called from @@ -1413,17 +1412,15 @@ static bool hdmi_present_sense_via_verbs(struct hdmi_spec_per_pin *per_pin, present = snd_hda_pin_sense(codec, pin_nid); mutex_lock(&per_pin->lock); - pin_eld->monitor_present = !!(present & AC_PINSENSE_PRESENCE); - eld->monitor_present = pin_eld->monitor_present; - - if (pin_eld->monitor_present) + eld->monitor_present = !!(present & AC_PINSENSE_PRESENCE); + if (eld->monitor_present) eld->eld_valid = !!(present & AC_PINSENSE_ELDV); else eld->eld_valid = false; codec_dbg(codec, "HDMI status: Codec=%d Pin=%d Presence_Detect=%d ELD_Valid=%d\n", - codec->addr, pin_nid, pin_eld->monitor_present, eld->eld_valid); + codec->addr, pin_nid, eld->monitor_present, eld->eld_valid); if (eld->eld_valid) { if (spec->ops.pin_get_eld(codec, pin_nid, eld->eld_buffer, @@ -1443,7 +1440,7 @@ static bool hdmi_present_sense_via_verbs(struct hdmi_spec_per_pin *per_pin, else update_eld(codec, per_pin, eld); - ret = !repoll || !pin_eld->monitor_present || pin_eld->eld_valid; + ret = !repoll || !eld->monitor_present || eld->eld_valid; jack = snd_hda_jack_tbl_get(codec, pin_nid); if (jack) |