tree 7e39648ce48167ea6f9d2c4364d483a4e0b0cc64
parent 1fb0a998e1a8cb26a1f7fe1f79e2e3654aafdc93
author Stephen Hemminger <stephen.hemminger@vyatta.com> 1201374582 -0800
committer Stephen Hemminger <stephen.hemminger@vyatta.com> 1201374582 -0800

poll for errors after rtnl_send

This fixes the problem where a bulk operation (like ip flush)
is performed as non-root user.  The kernel will only send a response
if there is an error, so check for it.