John Ferlan 5c0dad7b39 qemu_driver: Resolve Coverity FORWARD_NULL
In qemuDomainSnapshotCreateDiskActive() if we jumped to cleanup from a
failed actions = virJSONValueNewArray(), then 'cfg' would be NULL.

So just return -1, which in turn removes the need for cleanup:
2014-08-28 19:18:52 -04:00
..
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