static int rockchip_otp_probe()

in rockchip-otp.c [209:256]

• 39 lines of code
• 8 McCabe index (conditional complexity)

static int rockchip_otp_probe(struct platform_device *pdev)
{
	struct device *dev = &pdev->dev;
	struct rockchip_otp *otp;
	const struct rockchip_data *data;
	struct nvmem_device *nvmem;
	int ret, i;

	data = of_device_get_match_data(dev);
	if (!data) {
		dev_err(dev, "failed to get match data\n");
		return -EINVAL;
	}

	otp = devm_kzalloc(&pdev->dev, sizeof(struct rockchip_otp),
			   GFP_KERNEL);
	if (!otp)
		return -ENOMEM;

	otp->dev = dev;
	otp->base = devm_platform_ioremap_resource(pdev, 0);
	if (IS_ERR(otp->base))
		return PTR_ERR(otp->base);

	otp->num_clks = ARRAY_SIZE(rockchip_otp_clocks);
	otp->clks = devm_kcalloc(dev, otp->num_clks,
				     sizeof(*otp->clks), GFP_KERNEL);
	if (!otp->clks)
		return -ENOMEM;

	for (i = 0; i < otp->num_clks; ++i)
		otp->clks[i].id = rockchip_otp_clocks[i];

	ret = devm_clk_bulk_get(dev, otp->num_clks, otp->clks);
	if (ret)
		return ret;

	otp->rst = devm_reset_control_get(dev, "phy");
	if (IS_ERR(otp->rst))
		return PTR_ERR(otp->rst);

	otp_config.size = data->size;
	otp_config.priv = otp;
	otp_config.dev = dev;
	nvmem = devm_nvmem_register(dev, &otp_config);

	return PTR_ERR_OR_ZERO(nvmem);
}