From: Colin Ian King <colin.king@xxxxxxxxxxxxx>
kcontrol->private_value is being kfree'd after kcontrol has been freed
(in previous call to snd_ctl_remove). Instead, fix this by kfreeing
the private_value before kcontrol.
CoverityScan CID#1388311 "Read from pointer after free"
Fixes: eea3dd4f1247a ("ASoC: topology: Only free TLV for volume mixers of a widget")
Signed-off-by: Colin Ian King <colin.king@xxxxxxxxxxxxx>
---
sound/soc/soc-topology.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/sound/soc/soc-topology.c b/sound/soc/soc-topology.c
index 11feb19..b5472e0 100644
--- a/sound/soc/soc-topology.c
+++ b/sound/soc/soc-topology.c
@@ -514,13 +514,12 @@ static void remove_widget(struct snd_soc_component *comp,
== SND_SOC_TPLG_TYPE_MIXER)
kfree(kcontrol->tlv.p);
- 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);
+ snd_ctl_remove(card, kcontrol);
}
kfree(w->kcontrol_news);
}
--
2.10.2
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