diff --git a/kernel/cgroup.c b/kernel/cgroup.c index 1fbcc748044a7f3dc367381838289ecce3992652..aa3bee56644675d4c707b03d97fcf0bb47306646 100644 --- a/kernel/cgroup.c +++ b/kernel/cgroup.c @@ -2936,14 +2936,17 @@ static long cgroup_create(struct cgroup *parent, struct dentry *dentry, for_each_subsys(root, ss) { struct cgroup_subsys_state *css = ss->create(ss, cgrp); + if (IS_ERR(css)) { err = PTR_ERR(css); goto err_destroy; } init_cgroup_css(css, ss, cgrp); - if (ss->use_id) - if (alloc_css_id(ss, parent, cgrp)) + if (ss->use_id) { + err = alloc_css_id(ss, parent, cgrp); + if (err) goto err_destroy; + } /* At error, ->destroy() callback has to free assigned ID. */ }