Use devm_ioremap_resource() instead of open code.
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Acked-by: Manuel Lauss <manuel.lauss@gmail.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
                return -ENOMEM;
 
        iores = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-       if (!iores)
-               return -ENODEV;
-
-       ret = -EBUSY;
-       if (!devm_request_mem_region(&pdev->dev, iores->start,
-                                    resource_size(iores),
-                                    pdev->name))
-               return -EBUSY;
-
-       wd->mmio = devm_ioremap(&pdev->dev, iores->start,
-                               resource_size(iores));
-       if (!wd->mmio)
-               return -EBUSY;
+       wd->mmio = devm_ioremap_resource(&pdev->dev, iores);
+       if (IS_ERR(wd->mmio))
+               return PTR_ERR(wd->mmio);
 
        dmares = platform_get_resource(pdev, IORESOURCE_DMA, 0);
        if (!dmares)