tree dd1dc64562db85a382a6118335821c311809cac3
parent 450d6e306b4717bfae11218a02648509baf04ce1
author Michael Buesch <mb@bu3sch.de> 1248130724 +0000
committer Helge Deller <deller@gmx.de> 1249209352 +0200

parisc: isa-eeprom - Fix loff_t usage

loff_t is a signed type. If userspace passes a negative ppos, the "count"
range check is weakened. "count"s bigger than HPEE_MAX_LENGTH will pass the check.
Also, if ppos is negative, the readb(eisa_eeprom_addr + *ppos) will poke in random
memory.

Signed-off-by: Michael Buesch <mb@bu3sch.de>
Cc: stable@kernel.org
Signed-off-by: Helge Deller <deller@gmx.de>