Re: [rhel5-branch] Fix waiting for a cdrom with a ks file to come up. (#658398)

[Chris Lumens <clumens redhat com>]

> To make sure probeDevices() returned an actual device, we have to check
> that devices is not null, but also that at least one member of the array
> has a non-null 'device' member.
> 
> The solution was suggested by Sandeep K Shandilya from cisco.

Looks fine to me.  Check to see if this is appropriate for master, too.

- Chris