When num_kcontrols is zero, widget->dobj.widget.kcontrol_type gets set to an uninitialized local variable:
sound/soc/soc-topology.c: In function 'soc_tplg_dapm_widget_create': sound/soc/soc-topology.c:1566:36: error: 'kcontrol_type' may be used uninitialized in this function [-Werror=maybe-uninitialized]
I could not figure out which of the valid types would be appropriate here, so this sets it to '0', which is invalid but at least well-defined here. There is probably a better way to address the issue.
Fixes: eea3dd4f1247 ("ASoC: topology: Only free TLV for volume mixers of a widget") Signed-off-by: Arnd Bergmann arnd@arndb.de --- sound/soc/soc-topology.c | 1 + 1 file changed, 1 insertion(+)
diff --git a/sound/soc/soc-topology.c b/sound/soc/soc-topology.c index 11feb19e9730..65670b2b408c 100644 --- a/sound/soc/soc-topology.c +++ b/sound/soc/soc-topology.c @@ -1485,6 +1485,7 @@ static int soc_tplg_dapm_widget_create(struct soc_tplg *tplg, tplg->pos += (sizeof(struct snd_soc_tplg_dapm_widget) + w->priv.size); if (w->num_kcontrols == 0) { + kcontrol_type = 0; template.num_kcontrols = 0; goto widget; }