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)
commit4ba1d9c0c22947a9207029e7184733252e6135f1
tree7801ca5b28bfb50a1992483ebbf86b46471b05dc
parentfe43d6d9cf59d8f8cbfdcde2018de13ffd1285c7
firewire: cdev: disallow receive packets without header

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>
drivers/firewire/core-cdev.c