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ASoC: mediatek: fix double free in mt2701_afe_pcm_dev_probe() 

The commit dfa3cbb8(ASoC: mediatek: modify MT2701 AFE driver to adapt mfd device)
leads to the following static checker warning:

	sound/soc/mediatek/mt2701/mt2701-afe-pcm.c:1535 mt2701_afe_pcm_dev_probe()
	error: double free of 'component'

This patch fixes that and adds a helper mt2701_afe_add_component() to setup
component.

Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Ryder Lee <ryder.lee@mediatek.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Ryder Lee 2018-01-22 19:33:05 +08:00 committed by Mark Brown
parent 11aa2d9613
commit dc2a17f4f0
No known key found for this signature in database
GPG Key ID: 24D68B725D5487D0
1 changed files with 18 additions and 14 deletions
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32
sound/soc/mediatek/mt2701/mt2701-afe-pcm.c
View File

@ -1405,9 +1405,24 @@ static int mt2701_afe_runtime_resume(struct device *dev)
return mt2701_afe_enable_clock(afe);
}
static int mt2701_afe_pcm_dev_probe(struct platform_device *pdev)
static int mt2701_afe_add_component(struct mtk_base_afe *afe)
{
struct snd_soc_component *component;
component = kzalloc(sizeof(*component), GFP_KERNEL);
if (!component)
return -ENOMEM;
component->regmap = afe->regmap;
return snd_soc_add_component(afe->dev, component,
&mt2701_afe_pcm_dai_component,
mt2701_afe_pcm_dais,
ARRAY_SIZE(mt2701_afe_pcm_dais));
}
static int mt2701_afe_pcm_dev_probe(struct platform_device *pdev)
{
struct mtk_base_afe *afe;
struct mt2701_afe_private *afe_priv;
struct device *dev;
@ -1477,12 +1492,6 @@ static int mt2701_afe_pcm_dev_probe(struct platform_device *pdev)
= &mt2701_i2s_data[i][I2S_IN];
}
component = kzalloc(sizeof(*component), GFP_KERNEL);
if (!component)
return -ENOMEM;
component->regmap = afe->regmap;
afe->mtk_afe_hardware = &mt2701_afe_hardware;
afe->memif_fs = mt2701_memif_fs;
afe->irq_fs = mt2701_irq_fs;
@ -1495,7 +1504,7 @@ static int mt2701_afe_pcm_dev_probe(struct platform_device *pdev)
ret = mt2701_init_clock(afe);
if (ret) {
dev_err(dev, "init clock error\n");
goto err_init_clock;
return ret;
}
platform_set_drvdata(pdev, afe);
@ -1514,10 +1523,7 @@ static int mt2701_afe_pcm_dev_probe(struct platform_device *pdev)
goto err_platform;
}
ret = snd_soc_add_component(dev, component,
&mt2701_afe_pcm_dai_component,
mt2701_afe_pcm_dais,
ARRAY_SIZE(mt2701_afe_pcm_dais));
ret = mt2701_afe_add_component(afe);
if (ret) {
dev_warn(dev, "err_dai_component\n");
goto err_dai_component;
@ -1531,8 +1537,6 @@ static int mt2701_afe_pcm_dev_probe(struct platform_device *pdev)
pm_runtime_put_sync(dev);
err_pm_disable:
pm_runtime_disable(dev);
err_init_clock:
kfree(component);
return ret;
}