On Mon 31-01-22 17:01:23, Andrew Morton wrote: > On Fri, 28 Jan 2022 15:45:40 +0100 David Hildenbrand <david@xxxxxxxxxx> wrote: > > > If register_memory() fails, we freed the memory block but already added > > the memory block to the group list, not good. Let's defer adding the > > block to the memory group to after registering the memory block device. > > > > We do handle it properly during unregister_memory(), but that's not > > called when the registration fails. > > > > I guess this has never been known to happen. So I queued the fix for > 5.18-rc1, cc:stable. I do not think this is worth stable backporting. Chances of a failure are pretty small and I am not aware of any existing report. -- Michal Hocko SUSE Labs
