Adrian Chadd 7ea3aada55 Handle ps-poll data frame if_transmit() failure.
If the data frame transmission failures, it may have a node reference
that needs cleaning up.

If the frame is marked as M_ENCAP then it should treat recvif as a node
reference and clear it.

Now - since the mbuf has been freed by calling if_transmit() (even on
failure), the mbuf has to be treated as invalid.  Hence why the ifp is
used.
2013-01-06 04:40:07 +00:00
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