On Sun, Mar 10, 2013 at 06:18:22PM +0100, Javier Martinez Canillas wrote:
> +static int gpmc_probe_ethernet_child(struct platform_device *pdev,
> + struct device_node *child)
> +{
> + int ret, cs;
> + unsigned long base;
> + struct resource res;
> + struct platform_device *of_dev;
> +
> + if (of_property_read_u32(child, "reg", &cs) < 0) {
> + dev_err(&pdev->dev, "%s has no 'reg' property\n",
> + child->full_name);
> + return -ENODEV;
> + }
> +
> + if (of_address_to_resource(child, 0, &res)) {
> + dev_err(&pdev->dev, "%s has malformed 'reg' property\n",
> + child->full_name);
> + return -ENODEV;
> + }
> +
> + ret = gpmc_cs_request(cs, resource_size(&res), &base);
> + if (IS_ERR_VALUE(ret)) {
NAK. ret < 0 is the correct way to test here. Don't use IS_ERR_VALUE
unless you have a _very_ good reason to. That's a good bit of advice
for everything in linux/err.h. Don't use *anything* from there without
a damned good reason.
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