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sh: off by one BUG_ON() in setup_bootmem_node()

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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@oracle.com>
Cc: Paul Mundt <lethal@linux-sh.org>
Acked-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Dan Carpenter 2014-12-10 15:41:31 -08:00 committed by Linus Torvalds
parent 7b990789a4
commit ded0014274
1 changed files with 1 additions and 1 deletions
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arch/sh/mm/numa.c
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@ -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;