diff --git a/mm/nobootmem.c b/mm/nobootmem.c
index 487dad610731b7746d1fd3668e98c6ede3828be7..36454d0f96ee6b91383554c83015a2b47e66f038 100644
--- a/mm/nobootmem.c
+++ b/mm/nobootmem.c
@@ -118,7 +118,7 @@ static unsigned long __init __free_memory_core(phys_addr_t start,
 	unsigned long end_pfn = min_t(unsigned long,
 				      PFN_DOWN(end), max_low_pfn);
 
-	if (start_pfn > end_pfn)
+	if (start_pfn >= end_pfn)
 		return 0;
 
 	__free_pages_memory(start_pfn, end_pfn);