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authorArnd Bergmann <arnd@arndb.de>2016-12-09 12:51:46 +0100
committerMark Brown <broonie@kernel.org>2016-12-12 15:43:02 +0000
commitdd5abb742071a962be4403f171063ed1e9d4202d (patch)
tree12b70438a3e590c9bcdb2a1618f351cfdb9acf8d /sound
parenteea3dd4f1247aa8654194fb19ade22c94c42e41a (diff)
downloadlinux-dd5abb742071a962be4403f171063ed1e9d4202d.tar.bz2
ASoC: topology: avoid uninitialized kcontrol_type
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> Reported-by: Dan Carpenter <dan.carpenter@oracle.com> Reviewed-by: Takashi Sakamoto <o-takashi@sakamocchi.jp> Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'sound')
-rw-r--r--sound/soc/soc-topology.c1
1 files changed, 1 insertions, 0 deletions
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;
}