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authorAxel Lin <axel.lin@ingics.com>2013-04-07 20:28:20 +0800
committerLinus Walleij <linus.walleij@linaro.org>2013-04-10 23:41:17 +0200
commitfdc7a9f85ab4c19acfc21e4da6ff8b7000bb686c (patch)
tree5e811b761ea73d80c977d6db2fd212dfe4fd7376 /drivers/gpio
parent97ddb1c88b4ebe057b63346660abfee165ddd468 (diff)
downloadlinux-fdc7a9f85ab4c19acfc21e4da6ff8b7000bb686c.tar.bz2
gpio: lpc32xx: Fix off-by-one valid range checking for bank
The valid bank should be 0 ... ARRAY_SIZE(lpc32xx_gpiochip) - 1. Signed-off-by: Axel Lin <axel.lin@ingics.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Diffstat (limited to 'drivers/gpio')
-rw-r--r--drivers/gpio/gpio-lpc32xx.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/gpio/gpio-lpc32xx.c b/drivers/gpio/gpio-lpc32xx.c
index 36d7dee07b28..dda6a756a3d9 100644
--- a/drivers/gpio/gpio-lpc32xx.c
+++ b/drivers/gpio/gpio-lpc32xx.c
@@ -533,7 +533,7 @@ static int lpc32xx_of_xlate(struct gpio_chip *gc,
{
/* Is this the correct bank? */
u32 bank = gpiospec->args[0];
- if ((bank > ARRAY_SIZE(lpc32xx_gpiochip) ||
+ if ((bank >= ARRAY_SIZE(lpc32xx_gpiochip) ||
(gc != &lpc32xx_gpiochip[bank].chip)))
return -EINVAL;