iio: adc: qcom-pm8xxx-xoadc: Make use of the helper function dev_err_probe()
When possible use dev_err_probe help to properly deal with the PROBE_DEFER error, the benefit is that DEFER issue will be logged in the devices_deferred debugfs file. Using dev_err_probe() can reduce code size, and the error value gets printed. BTW, change the return value from 'ENXIO' to 'ENODEV', perfer ENODEV which means no such device. Signed-off-by: Cai Huoqing <caihuoqing@baidu.com> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Link: https://lore.kernel.org/r/20211008092858.495-7-caihuoqing@baidu.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
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1 changed files with 4 additions and 5 deletions
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@ -910,16 +910,15 @@ static int pm8xxx_xoadc_probe(struct platform_device *pdev)
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map = dev_get_regmap(dev->parent, NULL);
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map = dev_get_regmap(dev->parent, NULL);
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if (!map) {
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if (!map) {
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dev_err(dev, "parent regmap unavailable.\n");
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dev_err(dev, "parent regmap unavailable.\n");
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return -ENXIO;
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return -ENODEV;
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}
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}
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adc->map = map;
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adc->map = map;
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/* Bring up regulator */
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/* Bring up regulator */
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adc->vref = devm_regulator_get(dev, "xoadc-ref");
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adc->vref = devm_regulator_get(dev, "xoadc-ref");
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if (IS_ERR(adc->vref)) {
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if (IS_ERR(adc->vref))
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dev_err(dev, "failed to get XOADC VREF regulator\n");
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return dev_err_probe(dev, PTR_ERR(adc->vref),
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return PTR_ERR(adc->vref);
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"failed to get XOADC VREF regulator\n");
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}
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ret = regulator_enable(adc->vref);
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ret = regulator_enable(adc->vref);
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if (ret) {
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if (ret) {
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dev_err(dev, "failed to enable XOADC VREF regulator\n");
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dev_err(dev, "failed to enable XOADC VREF regulator\n");
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