tree 7c2d95b3758acf4cf3b42aec04d284ae67de1647
parent 49276560c9004fce24c42e3c0ad75f34d956fc63
author Michael Buesch <mb@bu3sch.de> 1248860343 +0200
committer Greg Kroah-Hartman <gregkh@suse.de> 1249686312 -0700

USB: devio: Properly do access_ok() checks

access_ok() checks must be done on every part of the userspace structure
that is accessed. If access_ok() on one part of the struct succeeded, it
does not imply it will succeed on other parts of the struct. (Does
depend on the architecture implementation of access_ok()).

This changes the __get_user() users to first check access_ok() on the
data structure.

Signed-off-by: Michael Buesch <mb@bu3sch.de>
Cc: stable <stable@kernel.org>
Cc: Pete Zaitcev <zaitcev@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>