On Wednesday 05 March 2014, Liviu Dudau wrote:

+               unsigned long port = -1;
+               if (!pci_register_io_range(range->cpu_addr, range->size))
+                       port = pci_address_to_pio(range->cpu_addr);

I don't remember the outcome of my suggestion to just return 'port' from
pci_register_io_range(). In my mind that would be much simpler than
adding the range in a data structure just so we can look it up in the very
next line.

	Arnd