[S390] memory detection: stop at first memory hole.

If both sclp and diag memory detection don't work stop at the first
memory hole. Otherwise the code might loop forever...

Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>

diff --git a/arch/s390/kernel/early.c b/arch/s390/kernel/early.c
index 5e47936..50538e5 100644 (file)
--- a/arch/s390/kernel/early.c
+++ b/arch/s390/kernel/early.c
@@ -253,11 +253,10 @@ static noinline __init void find_memory_chunks(unsigned long memsize)
                        break;
 #endif
                /*
-                * Finish memory detection at the first hole, unless
-                * - we reached the hsa -> skip it.
-                * - we know there must be more.
+                * Finish memory detection at the first hole
+                * if storage size is unknown.
                 */
-               if (cc == -1UL && !memsize && old_addr != ADDR2G)
+               if (cc == -1UL && !memsize)
                        break;
                if (memsize && addr >= memsize)
                        break;