firewire: insist on successive self ID complete events
The whole topology code only works if the old and new topologies which are compared come from immediately successive self ID complete events. If there happened bus resets without self ID complete events in the meantime, or self ID complete events with invalid selfIDs, the topology comparison could identify nodes wrongly, or more likely just corrupt kernel memory or panic right away. We now discard all nodes of the old topology and treat all current nodes as new ones if the current self ID generation is not the previous one plus 1. Signed-off-by: NStefan Richter <stefanr@s5r6.in-berlin.de> Signed-off-by: NJarod Wilson <jwilson@redhat.com>
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