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authorHeiko Carstens <heiko.carstens@de.ibm.com>2007-11-20 11:13:39 +0100
committerMartin Schwidefsky <schwidefsky@de.ibm.com>2007-11-20 11:13:48 +0100
commita2cb07376e397e7e788551f14acd972e22b09efd (patch)
tree652a3c1c7c99b3676bbeaa5fbdce546e7a7943c8 /arch/s390/kernel/early.c
parent70cf5035dedaeddf8f6ae5c0a74ea65dcd7356ab (diff)
downloadop-kernel-dev-a2cb07376e397e7e788551f14acd972e22b09efd.zip
op-kernel-dev-a2cb07376e397e7e788551f14acd972e22b09efd.tar.gz
[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 <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'arch/s390/kernel/early.c')
-rw-r--r--arch/s390/kernel/early.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/s390/kernel/early.c b/arch/s390/kernel/early.c
index 8bf4ae1..1b3af7d 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)
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