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-rw-r--r--arch/arm/mm/mmap.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/arm/mm/mmap.c b/arch/arm/mm/mmap.c
index 5358fcc7f61e..f7457fea6de8 100644
--- a/arch/arm/mm/mmap.c
+++ b/arch/arm/mm/mmap.c
@@ -124,7 +124,7 @@ int valid_phys_addr_range(unsigned long addr, size_t size)
{
if (addr < PHYS_OFFSET)
return 0;
- if (addr + size > __pa(high_memory))
+ if (addr + size >= __pa(high_memory - 1))
return 0;
return 1;
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