nfp: turn reading PCIe RTsym parameters into a helper

Turn the function to read number of ports into a generic helper.
While at it make sure we propagate all errors other than -ENOENT.

Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Jakub Kicinski 2017-05-31 08:06:45 -07:00 • committed by David S. Miller
commit 69394af5de