tree 1393db9e9e77213d5aa9bb1c3a7752ce24578540
parent 43e0c96734544f1ce57033303b88148820484653
author Adam Israel <adam.israel@canonical.com> 1508179589 -0400
committer Adam Israel <adam.israel@canonical.com> 1508179589 -0400

Fix error raising interface

Don't fail if there's an error raising the interface. I'm seeing this
happen because the interface is already up.

Signed-off-by: Adam Israel <adam.israel@canonical.com>