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-rw-r--r--arch/powerpc/kernel/prom.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/powerpc/kernel/prom.c b/arch/powerpc/kernel/prom.c
index 87a68e2dc531..4181ec715f88 100644
--- a/arch/powerpc/kernel/prom.c
+++ b/arch/powerpc/kernel/prom.c
@@ -124,8 +124,8 @@ static void __init move_device_tree(void)
size = fdt_totalsize(initial_boot_params);
if ((memory_limit && (start + size) > PHYSICAL_START + memory_limit) ||
- overlaps_crashkernel(start, size) ||
- overlaps_initrd(start, size)) {
+ !memblock_is_memory(start + size - 1) ||
+ overlaps_crashkernel(start, size) || overlaps_initrd(start, size)) {
p = __va(memblock_phys_alloc(size, PAGE_SIZE));
memcpy(p, initial_boot_params, size);
initial_boot_params = p;