Linux kernel bug fix: blkcg: Unlock blkcg_pol_mutex only once when cpd == NULL
Subsystem: block (block/blk-cgroup.c)
Bug type: crash, severity: high
Files changed: block/blk-cgroup.c
Introduced by Tejun Heo on 2015-07-09 14:41:11 -0600; fixed by Bart Van Assche on 2016-09-30 10:31:20 +0200 (lifetime: 448 days)