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iio: adc: stm32-dfsdm: missing error case during probe

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During probe, check the devm_ioremap_resource() error value.
Also return the devm_clk_get() error value instead of -EINVAL.

Signed-off-by: Fabien Dessenne <fabien.dessenne@st.com>
Acked-by: Fabrice Gasnier <fabrice.gasnier@st.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
This commit is contained in:
Fabien Dessenne 2019-04-24 14:51:26 +02:00 committed by Jonathan Cameron
parent 3e53ef91f8
commit d2fc015696
1 changed files with 6 additions and 2 deletions
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8
drivers/iio/adc/stm32-dfsdm-core.c
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@ -233,6 +233,8 @@ static int stm32_dfsdm_parse_of(struct platform_device *pdev,
}
priv->dfsdm.phys_base = res->start;
priv->dfsdm.base = devm_ioremap_resource(&pdev->dev, res);
if (IS_ERR(priv->dfsdm.base))
return PTR_ERR(priv->dfsdm.base);
/*
* "dfsdm" clock is mandatory for DFSDM peripheral clocking.
@ -242,8 +244,10 @@ static int stm32_dfsdm_parse_of(struct platform_device *pdev,
*/
priv->clk = devm_clk_get(&pdev->dev, "dfsdm");
if (IS_ERR(priv->clk)) {
dev_err(&pdev->dev, "No stm32_dfsdm_clk clock found\n");
return -EINVAL;
ret = PTR_ERR(priv->clk);
if (ret != -EPROBE_DEFER)
dev_err(&pdev->dev, "Failed to get clock (%d)\n", ret);
return ret;
}
priv->aclk = devm_clk_get(&pdev->dev, "audio");