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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2016-10-14 12:18:50 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2016-10-14 12:18:50 -0700 |
| commit | f34d3606f76a8121b9d4940d2dd436bebeb2f9d7 (patch) | |
| tree | 61a9deb6a950568df274580fbbd44a7015af9f7c /block | |
| parent | b6daa51b9a6a02a644dcf6b880fd50c1f70ec07f (diff) | |
| parent | bbb427e342495df1cda10051d0566388697499c0 (diff) | |
Merge branch 'for-4.9' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup
Pull cgroup updates from Tejun Heo:
- tracepoints for basic cgroup management operations added
- kernfs and cgroup path formatting functions updated to behave in the
style of strlcpy()
- non-critical bug fixes
* 'for-4.9' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup:
blkcg: Unlock blkcg_pol_mutex only once when cpd == NULL
cgroup: fix error handling regressions in proc_cgroup_show() and cgroup_release_agent()
cpuset: fix error handling regression in proc_cpuset_show()
cgroup: add tracepoints for basic operations
cgroup: make cgroup_path() and friends behave in the style of strlcpy()
kernfs: remove kernfs_path_len()
kernfs: make kernfs_path*() behave in the style of strlcpy()
kernfs: add dummy implementation of kernfs_path_from_node()
Diffstat (limited to 'block')
| -rw-r--r-- | block/blk-cgroup.c | 4 |
1 files changed, 1 insertions, 3 deletions
diff --git a/block/blk-cgroup.c b/block/blk-cgroup.c index dd38e5ced4a3..b08ccbb9393a 100644 --- a/block/blk-cgroup.c +++ b/block/blk-cgroup.c @@ -1340,10 +1340,8 @@ int blkcg_policy_register(struct blkcg_policy *pol) struct blkcg_policy_data *cpd; cpd = pol->cpd_alloc_fn(GFP_KERNEL); - if (!cpd) { - mutex_unlock(&blkcg_pol_mutex); + if (!cpd) goto err_free_cpds; - } blkcg->cpd[pol->plid] = cpd; cpd->blkcg = blkcg; |