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metag: off by one in setup_bootmem_node()

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If "nid == MAX_NUMNODES" then we write beyond the end of the node_data[]
array.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: James Hogan <james.hogan@imgtec.com>
This commit is contained in:
Dan Carpenter
2013-11-08 12:45:33 +03:00
committed by James Hogan
parent 95281171a7
commit 51387306b5
1 changed files with 1 additions and 1 deletions
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2
arch/metag/mm/numa.c
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@@ -34,7 +34,7 @@ void __init setup_bootmem_node(int nid, unsigned long start, unsigned long end)
unsigned long pgdat_paddr; unsigned long pgdat_paddr;
/* Don't allow bogus node assignment */ /* Don't allow bogus node assignment */
BUG_ON(nid > MAX_NUMNODES || nid <= 0); BUG_ON(nid >= MAX_NUMNODES || nid <= 0);
start_pfn = start >> PAGE_SHIFT; start_pfn = start >> PAGE_SHIFT;
end_pfn = end >> PAGE_SHIFT; end_pfn = end >> PAGE_SHIFT;