pci: align ioport unmap error handling to ioport map
pci: align ioport unmap error handling to ioport map

Same idea as commit bd80d4730aca ("pci: rework ioport map error handling").

Signed-off-by: David Marchand <f28529695cfa9e3e1eb84e7072aa626af4abb18e@6wind.com>

john-mcnamara-intel/dpdk,john-mcnamara-intel/dpdk,john-mcnamara-intel/dpdk,john-mcnamara-intel/dpdk