+ if (!request_region(res->start + ADDR_REG_OFFSET, 2, DRVNAME)) {
+ err = -EBUSY;
+ dev_err(&pdev->dev, "Failed to request region 0x%lx-0x%lx\n",
+ (unsigned long)(res->start + ADDR_REG_OFFSET),
+ (unsigned long)(res->start + ADDR_REG_OFFSET + 1));
+ goto exit_free;
+ }