ARM: s3c: fix check of index into s3c_gpios[]

The check of the s3c_gpios[] index had an off-by-one.
Signed-off-by: NRoel Kluin <roel.kluin@gmail.com>
Acked-by: NBen Dooks <ben-linux@fluff.org>
Cc: Russell King <rmk@arm.linux.org.uk>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>

arch/arm/plat-s3c/gpio.c

@@ -28,7 +28,7 @@ static __init void s3c_gpiolib_track(struct s3c_gpio_chip *chip)
 
 	gpn = chip->chip.base;
 	for (i = 0; i < chip->chip.ngpio; i++, gpn++) {
-		BUG_ON(gpn > ARRAY_SIZE(s3c_gpios));
+		BUG_ON(gpn >= ARRAY_SIZE(s3c_gpios));
 		s3c_gpios[gpn] = chip;
 	}
 }