On 12/12/2014 10:31 AM, Joe Perches wrote: [...]
res = platform_get_resource(pdev, IORESOURCE_MEM, 0); - if (!res) { - dev_err(&pdev->dev, "no i2s resource defined\n"); - return -ENODEV; - } -Why delete this?dev->i2s_base = devm_ioremap_resource(&pdev->dev, res); - if (IS_ERR(dev->i2s_base)) { - dev_err(&pdev->dev, "ioremap fail for i2s_region\n"); + if (IS_ERR(dev->i2s_base)) return PTR_ERR(dev->i2s_base); - }or this?
devm_ioremap_resource both checks if res is NULL and does also its own error reporting. So the code in the driver is redundant.
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