res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- dev->regs_base = devm_request_and_ioremap(&pdev->dev, res);
- if (dev->regs_base == NULL) {
- dev_err(&pdev->dev, "Failed to obtain io memory\n");
- return -ENOENT;
- }
+ dev->regs_base = devm_ioremap_resource(&pdev->dev, res);
+ if (IS_ERR(dev->regs_base))
+ return PTR_ERR(dev->regs_base);
res = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
if (res == NULL) {