tree e6044bff3c9dba3392dfe1a4b172d87081d55334
parent 15853af9f07673680439b224519c692f1352b959
author Tejun Heo <htejun@gmail.com> 1131609301 +0100
committer Jens Axboe <axboe@nelson.home.kernel.dk> 1131789381 +0100

[BLOCK] fix string handling in elv_iosched_store

elv_iosched_store doesn't terminate string passed from userspace if
it's too long.  Also, if the written length is zero (probably not
possible), it accesses elevator_name[-1].  This patch fixes both bugs.

Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jens Axboe <axboe@suse.de>