Make sure to return any value from generate_install_media.
Make sure to return any value from generate_install_media.

Signed-off-by: Chris Lalancette <60b62644009db6b194cc0445b64e9b27bb26433a@redhat.com>

imcleod/oz,clalancette/oz,nullr0ute/oz,imcleod/oz,clalancette/oz,ndonegan/oz,moofrank/oz,nullr0ute/oz,mgagne/oz,NeilBryant/oz,cernops/oz,moofrank/oz,cernops/oz,NeilBryant/oz,ndonegan/oz,mgagne/oz