static int stm32_romem_probe()

in stm32-romem.c [139:175]

• 32 lines of code
• 4 McCabe index (conditional complexity)

static int stm32_romem_probe(struct platform_device *pdev)
{
	const struct stm32_romem_cfg *cfg;
	struct device *dev = &pdev->dev;
	struct stm32_romem_priv *priv;
	struct resource *res;

	priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
	if (!priv)
		return -ENOMEM;

	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
	priv->base = devm_ioremap_resource(dev, res);
	if (IS_ERR(priv->base))
		return PTR_ERR(priv->base);

	priv->cfg.name = "stm32-romem";
	priv->cfg.word_size = 1;
	priv->cfg.stride = 1;
	priv->cfg.dev = dev;
	priv->cfg.priv = priv;
	priv->cfg.owner = THIS_MODULE;

	cfg = (const struct stm32_romem_cfg *)
		of_match_device(dev->driver->of_match_table, dev)->data;
	if (!cfg) {
		priv->cfg.read_only = true;
		priv->cfg.size = resource_size(res);
		priv->cfg.reg_read = stm32_romem_read;
	} else {
		priv->cfg.size = cfg->size;
		priv->cfg.reg_read = stm32_bsec_read;
		priv->cfg.reg_write = stm32_bsec_write;
	}

	return PTR_ERR_OR_ZERO(devm_nvmem_register(dev, &priv->cfg));
}