From b700cff89955c0e7cb5fccd46d91bf2d45f5a418 Mon Sep 17 00:00:00 2001 From: Heiko Carstens Date: Tue, 20 Nov 2007 11:13:39 +0100 Subject: [PATCH] [S390] Fix memory detection. Before we're getting short on memory detection fixes here is the next one: if neither sclp nor diag260 report the storage size the detection loop will return immediately without detecting anything. Fix this by breaking the detection loop only if the memory end is known. Signed-off-by: Heiko Carstens Signed-off-by: Martin Schwidefsky --- arch/s390/kernel/early.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/s390/kernel/early.c b/arch/s390/kernel/early.c index 8bf4ae1150be6..1b3af7dab8161 100644 --- a/arch/s390/kernel/early.c +++ b/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) -- 2.39.5