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ASoC: topology: fix memory leaks on sm, se and sbe 

Currently when a kstrdup fails the error exit paths don't free
the allocations for sm, se and sbe.  This can be fixed by assigning
kc[i].private_value to these before doing the ksrtdup so that the error
exit path will be able to free these objects.

Addresses-Coverity: ("Resource leak")
Fixes: 9f90af3a99 ("ASoC: topology: Consolidate and fix asoc_tplg_dapm_widget_*_create flow")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
alistair/sunxi64-5.4-dsi
Colin Ian King 2019-06-27 14:32:08 +01:00 committed by Mark Brown
parent 8af26493c0
commit 1ad741d0e8
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GPG Key ID: 24D68B725D5487D0
1 changed files with 3 additions and 3 deletions
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6
sound/soc/soc-topology.c
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@ -1326,10 +1326,10 @@ static struct snd_kcontrol_new *soc_tplg_dapm_widget_dmixer_create(
dev_dbg(tplg->dev, " adding DAPM widget mixer control %s at %d\n",
mc->hdr.name, i);
kc[i].private_value = (long)sm;
kc[i].name = kstrdup(mc->hdr.name, GFP_KERNEL);
if (kc[i].name == NULL)
goto err_sm;
kc[i].private_value = (long)sm;
kc[i].iface = SNDRV_CTL_ELEM_IFACE_MIXER;
kc[i].access = mc->hdr.access;
@ -1412,10 +1412,10 @@ static struct snd_kcontrol_new *soc_tplg_dapm_widget_denum_create(
dev_dbg(tplg->dev, " adding DAPM widget enum control %s\n",
ec->hdr.name);
kc[i].private_value = (long)se;
kc[i].name = kstrdup(ec->hdr.name, GFP_KERNEL);
if (kc[i].name == NULL)
goto err_se;
kc[i].private_value = (long)se;
kc[i].iface = SNDRV_CTL_ELEM_IFACE_MIXER;
kc[i].access = ec->hdr.access;
@ -1524,10 +1524,10 @@ static struct snd_kcontrol_new *soc_tplg_dapm_widget_dbytes_create(
"ASoC: adding bytes kcontrol %s with access 0x%x\n",
be->hdr.name, be->hdr.access);
kc[i].private_value = (long)sbe;
kc[i].name = kstrdup(be->hdr.name, GFP_KERNEL);
if (kc[i].name == NULL)
goto err_sbe;
kc[i].private_value = (long)sbe;
kc[i].iface = SNDRV_CTL_ELEM_IFACE_MIXER;
kc[i].access = be->hdr.access;