diff options
Diffstat (limited to 'kernel/block/blk-cgroup.c')
| -rw-r--r-- | kernel/block/blk-cgroup.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/kernel/block/blk-cgroup.c b/kernel/block/blk-cgroup.c index 0ac817b75..6817e2896 100644 --- a/kernel/block/blk-cgroup.c +++ b/kernel/block/blk-cgroup.c @@ -716,8 +716,12 @@ int blkg_conf_prep(struct blkcg *blkcg, const struct blkcg_policy *pol, return -EINVAL; disk = get_gendisk(MKDEV(major, minor), &part); - if (!disk || part) + if (!disk) return -EINVAL; + if (part) { + put_disk(disk); + return -EINVAL; + } rcu_read_lock(); spin_lock_irq(disk->queue->queue_lock); |