1 files changed, 1 insertions, 1 deletions

diff --git a/mm/memory_hotplug.c b/mm/memory_hotplug.c
index 7d25cc12235f..26f1840879d6 100644
--- a/mm/memory_hotplug.c
+++ b/mm/memory_hotplug.c
@@ -163,7 +163,7 @@ int online_pages(unsigned long pfn, unsigned long nr_pages)
         res.flags = IORESOURCE_MEM; /* we just need system ram */
         section_end = res.end;
 
-        while (find_next_system_ram(&res) >= 0) {
+        while ((res.start < res.end) && (find_next_system_ram(&res) >= 0)) {
                 start_pfn = (unsigned long)(res.start >> PAGE_SHIFT);
                 nr_pages = (unsigned long)
                            ((res.end + 1 - res.start) >> PAGE_SHIFT);