ALSA: hda - Protect SPDIF-related stuff via spdif_mutex
Add the missing mutex protection or move into the protected part for SPDIF access codes for codecs. Signed-off-by: Takashi Iwai <tiwai@suse.de>
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61d648fb47
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e3245cddcf
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@ -2864,12 +2864,15 @@ static int snd_hda_spdif_default_get(struct snd_kcontrol *kcontrol,
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{
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struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
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int idx = kcontrol->private_value;
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struct hda_spdif_out *spdif = snd_array_elem(&codec->spdif_out, idx);
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struct hda_spdif_out *spdif;
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mutex_lock(&codec->spdif_mutex);
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spdif = snd_array_elem(&codec->spdif_out, idx);
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ucontrol->value.iec958.status[0] = spdif->status & 0xff;
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ucontrol->value.iec958.status[1] = (spdif->status >> 8) & 0xff;
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ucontrol->value.iec958.status[2] = (spdif->status >> 16) & 0xff;
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ucontrol->value.iec958.status[3] = (spdif->status >> 24) & 0xff;
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mutex_unlock(&codec->spdif_mutex);
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return 0;
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}
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@ -2955,12 +2958,14 @@ static int snd_hda_spdif_default_put(struct snd_kcontrol *kcontrol,
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{
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struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
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int idx = kcontrol->private_value;
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struct hda_spdif_out *spdif = snd_array_elem(&codec->spdif_out, idx);
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hda_nid_t nid = spdif->nid;
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struct hda_spdif_out *spdif;
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hda_nid_t nid;
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unsigned short val;
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int change;
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mutex_lock(&codec->spdif_mutex);
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spdif = snd_array_elem(&codec->spdif_out, idx);
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nid = spdif->nid;
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spdif->status = ucontrol->value.iec958.status[0] |
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((unsigned int)ucontrol->value.iec958.status[1] << 8) |
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((unsigned int)ucontrol->value.iec958.status[2] << 16) |
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@ -2982,9 +2987,12 @@ static int snd_hda_spdif_out_switch_get(struct snd_kcontrol *kcontrol,
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{
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struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
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int idx = kcontrol->private_value;
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struct hda_spdif_out *spdif = snd_array_elem(&codec->spdif_out, idx);
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struct hda_spdif_out *spdif;
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mutex_lock(&codec->spdif_mutex);
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spdif = snd_array_elem(&codec->spdif_out, idx);
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ucontrol->value.integer.value[0] = spdif->ctls & AC_DIG1_ENABLE;
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mutex_unlock(&codec->spdif_mutex);
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return 0;
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}
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@ -3004,12 +3012,14 @@ static int snd_hda_spdif_out_switch_put(struct snd_kcontrol *kcontrol,
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{
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struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
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int idx = kcontrol->private_value;
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struct hda_spdif_out *spdif = snd_array_elem(&codec->spdif_out, idx);
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hda_nid_t nid = spdif->nid;
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struct hda_spdif_out *spdif;
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hda_nid_t nid;
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unsigned short val;
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int change;
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mutex_lock(&codec->spdif_mutex);
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spdif = snd_array_elem(&codec->spdif_out, idx);
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nid = spdif->nid;
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val = spdif->ctls & ~AC_DIG1_ENABLE;
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if (ucontrol->value.integer.value[0])
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val |= AC_DIG1_ENABLE;
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@ -3097,6 +3107,9 @@ int snd_hda_create_spdif_out_ctls(struct hda_codec *codec,
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}
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EXPORT_SYMBOL_HDA(snd_hda_create_spdif_out_ctls);
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/* get the hda_spdif_out entry from the given NID
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* call within spdif_mutex lock
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*/
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struct hda_spdif_out *snd_hda_spdif_out_of_nid(struct hda_codec *codec,
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hda_nid_t nid)
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{
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@ -3113,9 +3126,10 @@ EXPORT_SYMBOL_HDA(snd_hda_spdif_out_of_nid);
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void snd_hda_spdif_ctls_unassign(struct hda_codec *codec, int idx)
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{
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struct hda_spdif_out *spdif = snd_array_elem(&codec->spdif_out, idx);
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struct hda_spdif_out *spdif;
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mutex_lock(&codec->spdif_mutex);
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spdif = snd_array_elem(&codec->spdif_out, idx);
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spdif->nid = (u16)-1;
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mutex_unlock(&codec->spdif_mutex);
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}
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@ -3123,10 +3137,11 @@ EXPORT_SYMBOL_HDA(snd_hda_spdif_ctls_unassign);
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void snd_hda_spdif_ctls_assign(struct hda_codec *codec, int idx, hda_nid_t nid)
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{
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struct hda_spdif_out *spdif = snd_array_elem(&codec->spdif_out, idx);
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struct hda_spdif_out *spdif;
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unsigned short val;
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mutex_lock(&codec->spdif_mutex);
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spdif = snd_array_elem(&codec->spdif_out, idx);
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if (spdif->nid != nid) {
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spdif->nid = nid;
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val = spdif->ctls;
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@ -4747,11 +4762,11 @@ int snd_hda_multi_out_analog_prepare(struct hda_codec *codec,
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{
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const hda_nid_t *nids = mout->dac_nids;
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int chs = substream->runtime->channels;
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struct hda_spdif_out *spdif =
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snd_hda_spdif_out_of_nid(codec, mout->dig_out_nid);
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struct hda_spdif_out *spdif;
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int i;
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mutex_lock(&codec->spdif_mutex);
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spdif = snd_hda_spdif_out_of_nid(codec, mout->dig_out_nid);
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if (mout->dig_out_nid && mout->share_spdif &&
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mout->dig_out_used != HDA_DIG_EXCLUSIVE) {
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if (chs == 2 &&
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@ -1592,10 +1592,10 @@ static int nvhdmi_8ch_7x_pcm_prepare(struct hda_pcm_stream *hinfo,
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unsigned int dataDCC2, channel_id;
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int i;
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struct hdmi_spec *spec = codec->spec;
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struct hda_spdif_out *spdif =
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snd_hda_spdif_out_of_nid(codec, spec->cvts[0].cvt_nid);
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struct hda_spdif_out *spdif;
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mutex_lock(&codec->spdif_mutex);
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spdif = snd_hda_spdif_out_of_nid(codec, spec->cvts[0].cvt_nid);
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chs = substream->runtime->channels;
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