diff --git a/arch/x86/mm/init_64.c b/arch/x86/mm/init_64.c
index ebe1811e5b1ef300dfc9b4123dc7349e8c0856f4..9db01db6e3cdf4cb0e11444d49e4d598be280b55 100644
--- a/arch/x86/mm/init_64.c
+++ b/arch/x86/mm/init_64.c
@@ -858,7 +858,7 @@ int arch_add_memory(int nid, u64 start, u64 size)
 		max_pfn_mapped = last_mapped_pfn;
 
 	ret = __add_pages(zone, start_pfn, nr_pages);
-	WARN_ON(1);
+	WARN_ON_ONCE(ret);
 
 	return ret;
 }