sched: Fix return value of migration_init()

migration_init() returns the return value of the hotplug notifier. In
the success case this is NOTIFY_OK which is 1. initcall_debug
evaluates that as an error code because init calls are expected to
return 0 on success.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
1 file changed