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ASoC: samsung: Fix error paths in the I2S driver's probe() 

Ensure they secondary DAI device is freed properly when asoc_dma_platform
registration fails.  This change is needed for proper deferred probe support
and will help preventing situations when the CPU DAI's initialization
completes without required DMA resources.

Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Sylwester Nawrocki 2016-07-21 20:03:49 +02:00 committed by Mark Brown
parent 48b418d7fd
commit 2b960386cb
1 changed files with 20 additions and 5 deletions
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25
sound/soc/samsung/i2s.c
View File

@ -1107,6 +1107,11 @@ static struct i2s_dai *i2s_alloc_dai(struct platform_device *pdev, bool sec)
return i2s;
}
static void i2s_free_sec_dai(struct i2s_dai *i2s)
{
platform_device_del(i2s->pdev);
}
#ifdef CONFIG_PM
static int i2s_runtime_suspend(struct device *dev)
{
@ -1340,17 +1345,27 @@ static int samsung_i2s_probe(struct platform_device *pdev)
return -EINVAL;
}
devm_snd_soc_register_component(&pri_dai->pdev->dev,
ret = devm_snd_soc_register_component(&pri_dai->pdev->dev,
&samsung_i2s_component,
&pri_dai->i2s_dai_drv, 1);
if (ret < 0)
goto err_free_dai;
ret = samsung_asoc_dma_platform_register(&pdev->dev, pri_dai->filter);
if (ret < 0)
goto err_free_dai;
pm_runtime_enable(&pdev->dev);
ret = samsung_asoc_dma_platform_register(&pdev->dev, pri_dai->filter);
if (ret != 0)
return ret;
ret = i2s_register_clock_provider(pdev);
if (!ret)
return 0;
return i2s_register_clock_provider(pdev);
pm_runtime_disable(&pdev->dev);
err_free_dai:
if (sec_dai)
i2s_free_sec_dai(sec_dai);
return ret;
}
static int samsung_i2s_remove(struct platform_device *pdev)