usb: chipidea: msm: get optional clock by devm_clk_get_optional()
When the driver tries to get optional clock, it ignores all errors except -EPROBE_DEFER, but if only ignores -ENOENT, it will cover some real errors, such as -ENOMEM, so use devm_clk_get_optional() to get optional clock. Cc: Peter Chen <Peter.Chen@nxp.com> Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com> Acked-by: Peter Chen <Peter.Chen@nxp.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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@ -205,12 +205,9 @@ static int ci_hdrc_msm_probe(struct platform_device *pdev)
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if (IS_ERR(clk))
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return PTR_ERR(clk);
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ci->fs_clk = clk = devm_clk_get(&pdev->dev, "fs");
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if (IS_ERR(clk)) {
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if (PTR_ERR(clk) == -EPROBE_DEFER)
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return -EPROBE_DEFER;
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ci->fs_clk = NULL;
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}
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ci->fs_clk = clk = devm_clk_get_optional(&pdev->dev, "fs");
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if (IS_ERR(clk))
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return PTR_ERR(clk);
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res = platform_get_resource(pdev, IORESOURCE_MEM, 1);
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ci->base = devm_ioremap_resource(&pdev->dev, res);
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