memblock: Make MEMBLOCK_ERROR be 0

And ensure we don't hand out 0 as a valid allocation. We put the
low limit at PAGE_SIZE arbitrarily.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>

1 files changed, 1 insertions, 1 deletions

diff --git a/include/linux/memblock.h b/include/linux/memblock.h
index 1a9c29cc92fa..dfa64494ced1 100644
--- a/include/linux/memblock.h
+++ b/include/linux/memblock.h
@@ -19,7 +19,7 @@
 #include <asm/memblock.h>
 
 #define INIT_MEMBLOCK_REGIONS   128
-#define MEMBLOCK_ERROR          (~(phys_addr_t)0)
+#define MEMBLOCK_ERROR          0
 
 struct memblock_region {
         phys_addr_t base;