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sh: Make sure indexes are positive

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The indexes are signed, make sure they are not negative
when we read array elements.

Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
This commit is contained in:
Roel Kluin 2009-11-02 16:14:42 +00:00 committed by Paul Mundt
parent c4b973f532
commit 9016332014
3 changed files with 3 additions and 3 deletions
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2
arch/sh/boards/mach-highlander/setup.c
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@ -384,7 +384,7 @@ static unsigned char irl2irq[HL_NR_IRL];
static int highlander_irq_demux(int irq)
{
if (irq >= HL_NR_IRL || !irl2irq[irq])
if (irq >= HL_NR_IRL || irq < 0 || !irl2irq[irq])
return irq;
return irl2irq[irq];

2
arch/sh/boards/mach-r2d/irq.c
View file

@ -116,7 +116,7 @@ static unsigned char irl2irq[R2D_NR_IRL];
int rts7751r2d_irq_demux(int irq)
{
if (irq >= R2D_NR_IRL || !irl2irq[irq])
if (irq >= R2D_NR_IRL || irq < 0 || !irl2irq[irq])
return irq;
return irl2irq[irq];

2
arch/sh/mm/numa.c
View file

@ -60,7 +60,7 @@ 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;