Re: [PATCH cgroup/for-3.14] cgroup: fix fail path in cgroup_load_subsys()

2013-12-13 Thread Tejun Heo
On Thu, Dec 12, 2013 at 11:17:08PM +0400, Vladimir Davydov wrote: > Calling cgroup_unload_subsys() from cgroup_load_subsys() after > online_css() failure will result in a NULL ptr dereference on attempt to > offline_css(), because online_css() only assigns css to cgroup on > success. Let's fix that

Re: [PATCH cgroup/for-3.14] cgroup: fix fail path in cgroup_load_subsys()

2013-12-12 Thread Li Zefan
On 2013/12/13 3:17, Vladimir Davydov wrote: > Calling cgroup_unload_subsys() from cgroup_load_subsys() after > online_css() failure will result in a NULL ptr dereference on attempt to > offline_css(), because online_css() only assigns css to cgroup on > success. Let's fix that by skipping calls to