Ensure that return values from kernel PCI config access
API calls in HFI driver are checked and react properly if
they are not expected (i.e. not successful).
Reviewed-by: NJakub Byczkowski <jakub.byczkowski@intel.com>
Signed-off-by: NBartlomiej Dudek <bartlomiej.dudek@intel.com>
Signed-off-by: NDennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: NDoug Ledford <dledford@redhat.com>