diff --git a/[refs] b/[refs]
index 7d16d0be8e16..3fe3e3d44b25 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 70cf5035dedaeddf8f6ae5c0a74ea65dcd7356ab
+refs/heads/master: a2cb07376e397e7e788551f14acd972e22b09efd
diff --git a/trunk/arch/s390/kernel/early.c b/trunk/arch/s390/kernel/early.c
index 8bf4ae1150be..1b3af7dab816 100644
--- a/trunk/arch/s390/kernel/early.c
+++ b/trunk/arch/s390/kernel/early.c
@@ -200,7 +200,7 @@ static noinline __init void find_memory_chunks(unsigned long memsize)
 		cc = __tprot(addr);
 		while (cc == old_cc) {
 			addr += CHUNK_INCR;
-			if (addr >= memsize)
+			if (memsize && addr >= memsize)
 				break;
 #ifndef CONFIG_64BIT
 			if (addr == ADDR2G)