The cleanup to sysinfo package introduced a regression. If memory cgroup isn't supported and --memory is specified when starting a container, we should return info instead of nil in checkCgroupMem(), otherwise we'll access a nil pointer. Signed-off-by: Zefan Li <lizefan@huawei.com> Upstream-commit: 439869320177f56a559ef189f5ce29f24cf99e12 Component: engine