tree e248b438d0302d71700c38cc5dfa40d85f81b76b
parent 21974061cfb3c4b0b1a83447fb5e7cdcd06e56dc
author Tejun Heo <tj@kernel.org> 1437602753 -0400
committer Jens Axboe <axboe@fb.com> 1437602813 -0600

blkcg: fix gendisk reference leak in blkg_conf_prep()

When a blkcg configuration is targeted to a partition rather than a
whole device, blkg_conf_prep fails with -EINVAL; unfortunately, it
forgets to put the gendisk ref in that case.  Fix it.

Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: stable@vger.kernel.org
Signed-off-by: Jens Axboe <axboe@fb.com>