drivers: bus: imx-weim: Simplify error path

	struct resource *res;

	struct clk *clk;

	void __iomem *base;

	int ret = -EINVAL;

	int ret;

	/* get the resource */

	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);

	base = devm_ioremap_resource(&pdev->dev, res);

	if (IS_ERR(base)) {

		ret = PTR_ERR(base);

		goto weim_err;

	}

	if (IS_ERR(base))

		return PTR_ERR(base);

	/* get the clock */

	clk = devm_clk_get(&pdev->dev, NULL);

	if (IS_ERR(clk))

		goto weim_err;

		return PTR_ERR(clk);

	ret = clk_prepare_enable(clk);

	if (ret)

		goto weim_err;

		return ret;

	/* parse the device node */

	ret = weim_parse_dt(pdev, base);

	if (ret) {

	if (ret)

		clk_disable_unprepare(clk);

		goto weim_err;

	}

	dev_info(&pdev->dev, "WEIM driver registered.\n");

	return 0;

	else

		dev_info(&pdev->dev, "Driver registered.\n");

weim_err:

	return ret;

}