[patch] sh: off by one BUG_ON() in setup_bootmem_node()

[Dan Carpenter]

This off by one bug is harmless but it upsets the static checkers and
the code is obvious so it doesn't hurt to fix it.  The Smatch warning
is:

	arch/sh/mm/numa.c:47 setup_bootmem_node()
	error: buffer overflow 'node_data' 1024 <= 1024

Signed-off-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx>

diff --git a/arch/sh/mm/numa.c b/arch/sh/mm/numa.c
index 3d85225..bce52ba 100644
--- a/arch/sh/mm/numa.c
+++ b/arch/sh/mm/numa.c
@@ -31,7 +31,7 @@ void __init setup_bootmem_node(int nid, unsigned long start, unsigned long end)
 	unsigned long bootmem_paddr;
 
 	/* 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;
 	end_pfn = end >> PAGE_SHIFT;
--
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