The patch
ASoC: samsung: Fix error paths in the I2S driver's probe()
has been applied to the asoc tree at
git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git
All being well this means that it will be integrated into the linux-next tree (usually sometime in the next 24 hours) and sent to Linus during the next merge window (or sooner if it is a bug fix), however if problems are discovered then the patch may be dropped or reverted.
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Thanks, Mark
From 2b960386cb75bd332a132c44c9ec69bd1f3122d8 Mon Sep 17 00:00:00 2001
From: Sylwester Nawrocki s.nawrocki@samsung.com Date: Thu, 21 Jul 2016 20:03:49 +0200 Subject: [PATCH] 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 --- sound/soc/samsung/i2s.c | 25 ++++++++++++++++++++----- 1 file changed, 20 insertions(+), 5 deletions(-)
diff --git a/sound/soc/samsung/i2s.c b/sound/soc/samsung/i2s.c index 27ca116ef31f..2bb35502b070 100644 --- a/sound/soc/samsung/i2s.c +++ b/sound/soc/samsung/i2s.c @@ -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)