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gpio: fix test on unsigned in lnw_irq_type()

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The wrong test was used, gpio is unsigned and it had an off-by-one.

Signed-off-by: Roel Kluin <[email protected]>
Cc: Alek Du <[email protected]>
Cc: David Brownell <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
This commit is contained in:
Roel Kluin 2009-12-15 16:46:18 -08:00 • committed by Linus Torvalds
commit 4efec6272e
1 changed files with 1 additions and 1 deletions
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2
drivers/gpio/langwell_gpio.c
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@ -123,7 +123,7 @@ static int lnw_irq_type(unsigned irq, unsigned type)
void __iomem *grer = (void __iomem *)(&lnw->reg_base->GRER[reg]);
void __iomem *gfer = (void __iomem *)(&lnw->reg_base->GFER[reg]);
if (gpio < 0 || gpio > lnw->chip.ngpio)
if (gpio >= lnw->chip.ngpio)
return -EINVAL;
spin_lock_irqsave(&lnw->lock, flags);
if (type & IRQ_TYPE_EDGE_RISING)