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| author | Tejun Heo <tj@kernel.org> | 2014-02-08 10:26:33 -0500 |
|---|---|---|
| committer | Tejun Heo <tj@kernel.org> | 2014-02-08 10:26:33 -0500 |
| commit | b58c89986a77a23658682a100eb15d8edb571ebb (patch) | |
| tree | 414266b86775faf92a7027e0ded52ca6b50f4c24 /kernel/cgroup.c | |
| parent | eb46bf89696972b856a9adb6aebd5c7b65c266e4 (diff) | |
| download | lwn-b58c89986a77a23658682a100eb15d8edb571ebb.tar.gz lwn-b58c89986a77a23658682a100eb15d8edb571ebb.zip | |
cgroup: fix error return from cgroup_create()
cgroup_create() was returning 0 after allocation failures. Fix it.
Signed-off-by: Tejun Heo <tj@kernel.org>
Acked-by: Li Zefan <lizefan@huawei.com>
Cc: stable@vger.kernel.org
Diffstat (limited to 'kernel/cgroup.c')
| -rw-r--r-- | kernel/cgroup.c | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/kernel/cgroup.c b/kernel/cgroup.c index 793f37176077..0eb7b868e1ab 100644 --- a/kernel/cgroup.c +++ b/kernel/cgroup.c @@ -4158,7 +4158,7 @@ static long cgroup_create(struct cgroup *parent, struct dentry *dentry, struct cgroup *cgrp; struct cgroup_name *name; struct cgroupfs_root *root = parent->root; - int ssid, err = 0; + int ssid, err; struct cgroup_subsys *ss; struct super_block *sb = root->sb; @@ -4168,8 +4168,10 @@ static long cgroup_create(struct cgroup *parent, struct dentry *dentry, return -ENOMEM; name = cgroup_alloc_name(dentry); - if (!name) + if (!name) { + err = -ENOMEM; goto err_free_cgrp; + } rcu_assign_pointer(cgrp->name, name); /* @@ -4177,8 +4179,10 @@ static long cgroup_create(struct cgroup *parent, struct dentry *dentry, * a half-baked cgroup. */ cgrp->id = idr_alloc(&root->cgroup_idr, NULL, 1, 0, GFP_KERNEL); - if (cgrp->id < 0) + if (cgrp->id < 0) { + err = -ENOMEM; goto err_free_name; + } /* * Only live parents can have children. Note that the liveliness |