This simplifies error handling.
Signed-off-by: Mark Brown <broonie@linaro.org>
        INIT_LIST_HEAD(&as->queue);
 
        as->pdev = pdev;
-       as->regs = ioremap(regs->start, resource_size(regs));
+       as->regs = devm_ioremap_resource(&pdev->dev, regs);
        if (!as->regs)
                goto out_free_buffer;
        as->phybase = regs->start;
 out_free_irq:
        free_irq(irq, master);
 out_unmap_regs:
-       iounmap(as->regs);
 out_free_buffer:
        if (!as->use_pdc)
                tasklet_kill(&as->tasklet);
        clk_disable_unprepare(as->clk);
        clk_put(as->clk);
        free_irq(as->irq, master);
-       iounmap(as->regs);
 
        spi_unregister_master(master);