tree 4a7d8cecf7a6368207f84503b2b287f266774836
parent cf3f8909a75ed27a887f0180d752ea1c4401cc86
author Sean Tranchetti <stranche@codeaurora.org> 1534441379 -0600
committer Sean Tranchetti <stranche@codeaurora.org> 1539965821 -0600

librmnetctl: Proper error handling of if_nametoindex()

if_nametoindex() returns an unsigned integer, so errors are indicated
by returning 0 to the caller. This updates the error handling to
check for 0 instead of negative numbers to avoid passing bogus
netlink messages to the kernel. This allows for more consistent and
helpful error messages to be returned to the caller

Change-Id: I5f78781c973e7cb5a8bbc813a31cd49e433034a4