diff --git a/drivers/base/memory.c b/drivers/base/memory.c index 817320c7c4c1b72cf248b73a184bc8dee6ef28ac..85ee64d0a44e9009a7d92dc38af6b2888141c675 100644 --- a/drivers/base/memory.c +++ b/drivers/base/memory.c @@ -554,6 +554,9 @@ store_soft_offline_page(struct device *dev, pfn >>= PAGE_SHIFT; if (!pfn_valid(pfn)) return -ENXIO; + /* Only online pages can be soft-offlined (esp., not ZONE_DEVICE). */ + if (!pfn_to_online_page(pfn)) + return -EIO; ret = soft_offline_page(pfn_to_page(pfn), 0); return ret == 0 ? count : ret; }