The incoming request hander fwnet_receive_packet() expects subsequent
datagram handling code to return non-zero on errors. However, almost
none of the failure paths did so. Fix them all.
(This error reporting is used to send and RCODE_CONFLICT_ERROR to the
sender node in such failure cases. Two modes of failure exist: Out of
memory, or firewire-net is unaware of any peer node to which a fragment
or an ARP packet belongs. However, it is unclear whether a sender can
actually make use of such information. A Linux peer apparently can't.
Maybe it should all be simplified to void functions.)
Reported-by: Julia Lawall <julia@diku.dk>
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
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