Bug 1758757: setup_links() expected to be a reference, value given error

We used call_user_func() but i think we need to use
call_user_func_array() for this

behatnotneeded

Change-Id: I94dad0b59be8bab7ac6b2e1c45a6968ac4ece9fa
Signed-off-by: Robert Lyon <robertl@catalyst.net.nz>