tree 52f47db69004eddcd22bfa69246d08632dfcd256
parent 5c5d6dabb7aac9d0ea7aa76b909bbd28efa99065
author Sam Ravnborg <sam@ravnborg.org> 1209275845 -0700
committer David S. Miller <davem@davemloft.net> 1209331611 -0700

can: Fix copy_from_user() results interpretation

Both copy_to_ and _from_user return the number of bytes, that failed to
reach their destination, not the 0/-EXXX values.

Based on patch from Pavel Emelyanov <xemul@openvz.org>

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Acked-by: Oliver Hartkopp <oliver.hartkopp@volkswagen.de>
Signed-off-by: David S. Miller <davem@davemloft.net>