tree 3b727a066fe78d7c88cf08c633d4b3887b0e1f37
parent 9175b8544ff7b73b158df370acc1d828b28b80b7
author Duncan Sands <duncan.sands@math.u-psud.fr> 1144761537 -0300
committer Mauro Carvalho Chehab <mchehab@infradead.org> 1147474490 -0300

V4L/DVB (3766): Correct buffer size calculations in cx88-core.c

The computation in cx88_risc_buffer suffers from the mistake:
a non-zero padding value can cause more page borders to be crossed,
leading to big buffer over-runs.  
This patch changes the additive constant from 3 + 4 to 4
It also changees the constant in cx88_risc_databuffer from 3 + 4 to 2,
because 2 dwords are the correct vaule.

Signed-off-by: Duncan Sands <baldrick@free.fr>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>