On Thu, Jul 18, 2013 at 07:00:32PM +0200, Gerhard Sittig wrote:

> +	psc_num = master->bus_num;
> +	snprintf(clk_name, sizeof(clk_name), "psc%d_mclk", psc_num);
> +	mps->clk_mclk = clk_get(dev, clk_name);
> +	if (IS_ERR(mps->clk_mclk))
> +		goto free_irq;

Should be using devm_clk_get().