i2c: axxia: disable clks in case of failure in probe
axxia_i2c_probe() does not disable clock in case of failure in i2c_add_adapter(). Also it ignores returned value from clk_prepare_enable(). Found by Linux Driver Verification project (linuxtesting.org). Signed-off-by: Alexey Khoroshilov <khoroshilov@ispras.ru> Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
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@ -545,7 +545,11 @@ static int axxia_i2c_probe(struct platform_device *pdev)
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return ret;
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}
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clk_prepare_enable(idev->i2c_clk);
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ret = clk_prepare_enable(idev->i2c_clk);
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if (ret) {
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dev_err(&pdev->dev, "failed to enable clock\n");
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return ret;
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}
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i2c_set_adapdata(&idev->adapter, idev);
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strlcpy(idev->adapter.name, pdev->name, sizeof(idev->adapter.name));
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@ -558,7 +562,13 @@ static int axxia_i2c_probe(struct platform_device *pdev)
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platform_set_drvdata(pdev, idev);
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return i2c_add_adapter(&idev->adapter);
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ret = i2c_add_adapter(&idev->adapter);
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if (ret) {
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clk_disable_unprepare(idev->i2c_clk);
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return ret;
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}
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return 0;
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}
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static int axxia_i2c_remove(struct platform_device *pdev)
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