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firewire: cdev: disallow receive packets without header
authorClemens Ladisch <clemens@ladisch.de>
Wed, 31 Mar 2010 14:26:39 +0000 (16:26 +0200)
committerStefan Richter <stefanr@s5r6.in-berlin.de>
Sat, 10 Apr 2010 14:51:13 +0000 (16:51 +0200)
In receive contexts, reject packets with header_length==0.  This would
be an instruction to queue zero packets which would not make sense.

This prevents a division by zero in the OHCI driver.

Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>

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