From: Mengdong Lin mengdong.lin@linux.intel.com
This patch will check the type of embedded controls for a widget, and only free the TLV of volume mixers. Bytes controls don't have TLV.
Just free the private value which is used as struct soc_mixer_control for volume mixers or soc_bytes_ext for bytes controls. No need to cast to these types before freeing it.
Signed-off-by: Mengdong Lin mengdong.lin@linux.intel.com
diff --git a/include/sound/soc-topology.h b/include/sound/soc-topology.h index d318fe4..86c884a 100644 --- a/include/sound/soc-topology.h +++ b/include/sound/soc-topology.h @@ -53,7 +53,7 @@ struct snd_soc_dobj_control {
/* dynamic widget object */ struct snd_soc_dobj_widget { - unsigned int kcontrol_enum:1; /* this widget is an enum kcontrol */ + unsigned int kcontrol_type; /* kcontrol type: mixer, enum, bytes */ };
/* generic dynamic object - all dynamic objects belong to this struct */ diff --git a/sound/soc/soc-topology.c b/sound/soc/soc-topology.c index 63e1a50..11feb19 100644 --- a/sound/soc/soc-topology.c +++ b/sound/soc/soc-topology.c @@ -489,7 +489,7 @@ static void remove_widget(struct snd_soc_component *comp, * Dynamic Widgets either have 1..N enum kcontrols or mixers. * The enum may either have an array of values or strings. */ - if (dobj->widget.kcontrol_enum) { + if (dobj->widget.kcontrol_type == SND_SOC_TPLG_TYPE_ENUM) { /* enumerated widget mixer */ for (i = 0; i < w->num_kcontrols; i++) { struct snd_kcontrol *kcontrol = w->kcontrols[i]; @@ -506,16 +506,21 @@ static void remove_widget(struct snd_soc_component *comp, } kfree(w->kcontrol_news); } else { - /* non enumerated widget mixer */ + /* volume mixer or bytes controls */ for (i = 0; i < w->num_kcontrols; i++) { struct snd_kcontrol *kcontrol = w->kcontrols[i]; - struct soc_mixer_control *sm = - (struct soc_mixer_control *) kcontrol->private_value;
- kfree(w->kcontrols[i]->tlv.p); + if (dobj->widget.kcontrol_type + == SND_SOC_TPLG_TYPE_MIXER) + kfree(kcontrol->tlv.p);
- snd_ctl_remove(card, w->kcontrols[i]); - kfree(sm); + snd_ctl_remove(card, kcontrol); + + /* Private value is used as struct soc_mixer_control + * for volume mixers or soc_bytes_ext for bytes + * controls. + */ + kfree((void *)kcontrol->private_value); } kfree(w->kcontrol_news); } @@ -1439,6 +1444,7 @@ static int soc_tplg_dapm_widget_create(struct soc_tplg *tplg, struct snd_soc_dapm_widget template, *widget; struct snd_soc_tplg_ctl_hdr *control_hdr; struct snd_soc_card *card = tplg->comp->card; + unsigned int kcontrol_type; int ret = 0;
if (strnlen(w->name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) == @@ -1494,6 +1500,7 @@ static int soc_tplg_dapm_widget_create(struct soc_tplg *tplg, case SND_SOC_TPLG_CTL_VOLSW_XR_SX: case SND_SOC_TPLG_CTL_RANGE: case SND_SOC_TPLG_DAPM_CTL_VOLSW: + kcontrol_type = SND_SOC_TPLG_TYPE_MIXER; /* volume mixer */ template.num_kcontrols = w->num_kcontrols; template.kcontrol_news = soc_tplg_dapm_widget_dmixer_create(tplg, @@ -1508,7 +1515,7 @@ static int soc_tplg_dapm_widget_create(struct soc_tplg *tplg, case SND_SOC_TPLG_DAPM_CTL_ENUM_DOUBLE: case SND_SOC_TPLG_DAPM_CTL_ENUM_VIRT: case SND_SOC_TPLG_DAPM_CTL_ENUM_VALUE: - template.dobj.widget.kcontrol_enum = 1; + kcontrol_type = SND_SOC_TPLG_TYPE_ENUM; /* enumerated mixer */ template.num_kcontrols = w->num_kcontrols; template.kcontrol_news = soc_tplg_dapm_widget_denum_create(tplg, @@ -1519,6 +1526,7 @@ static int soc_tplg_dapm_widget_create(struct soc_tplg *tplg, } break; case SND_SOC_TPLG_CTL_BYTES: + kcontrol_type = SND_SOC_TPLG_TYPE_BYTES; /* bytes control */ template.num_kcontrols = w->num_kcontrols; template.kcontrol_news = soc_tplg_dapm_widget_dbytes_create(tplg, @@ -1555,6 +1563,7 @@ static int soc_tplg_dapm_widget_create(struct soc_tplg *tplg, }
widget->dobj.type = SND_SOC_DOBJ_WIDGET; + widget->dobj.widget.kcontrol_type = kcontrol_type; widget->dobj.ops = tplg->ops; widget->dobj.index = tplg->index; kfree(template.sname);