diff options
Diffstat (limited to 'mm/page_cgroup.c')
| -rw-r--r-- | mm/page_cgroup.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/mm/page_cgroup.c b/mm/page_cgroup.c index 4f31c9b3e940..672089d5819f 100644 --- a/mm/page_cgroup.c +++ b/mm/page_cgroup.c @@ -99,6 +99,8 @@ struct page_cgroup *lookup_page_cgroup(struct page *page) unsigned long pfn = page_to_pfn(page); struct mem_section *section = __pfn_to_section(pfn); + if (!section->page_cgroup) + return NULL; return section->page_cgroup + pfn; } |