1 files changed, 3 insertions, 0 deletions

diff --git a/drivers/base/memory.c b/drivers/base/memory.c
index 6bea4f3f8040..55907c27075b 100644
--- a/drivers/base/memory.c
+++ b/drivers/base/memory.c
@@ -540,6 +540,9 @@ static ssize_t soft_offline_page_store(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;
 }