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mmc: sdhci-pxav2: add error handling of clk_prepare_enable()
There is no check if clk_prepare_enable() succeed in sdhci_pxav2_probe(). Found by Linux Driver Verification project (linuxtesting.org). Signed-off-by: Alexey Khoroshilov <khoroshilov@ispras.ru> Acked-by: Adrian Hunter <adrian.hunter@intel.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
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@ -185,7 +185,11 @@ static int sdhci_pxav2_probe(struct platform_device *pdev)
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goto err_clk_get;
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}
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pltfm_host->clk = clk;
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clk_prepare_enable(clk);
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ret = clk_prepare_enable(clk);
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if (ret) {
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dev_err(&pdev->dev, "failed to enable io clock\n");
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goto err_clk_enable;
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}
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host->quirks = SDHCI_QUIRK_BROKEN_ADMA
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| SDHCI_QUIRK_BROKEN_TIMEOUT_VAL
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@ -228,6 +232,7 @@ static int sdhci_pxav2_probe(struct platform_device *pdev)
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err_add_host:
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clk_disable_unprepare(clk);
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err_clk_enable:
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clk_put(clk);
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err_clk_get:
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sdhci_pltfm_free(pdev);
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