[PATCH v7 2/6] pci: OF: Fix the conversion of IO ranges into IO resources.

+int of_pci_range_to_resource(struct of_pci_range *range,
+       struct device_node *np, struct resource *res)
+{
+       res->flags = range->flags;
+       if (res->flags & IORESOURCE_IO) {
+               unsigned long port = -1;
+               int err = pci_register_io_range(range->cpu_addr, range->size);
+               if (err)
+                       return err;
+               port = pci_address_to_pio(range->cpu_addr);
+               if (port == (unsigned long)-1) {
+                       res->start = (resource_size_t)OF_BAD_ADDR;
+                       res->end = (resource_size_t)OF_BAD_ADDR;
+                       return -EINVAL;
+               }