[ARM] S3C: Fix gpio-config off-by-one bug

Fix gpio-config off-by-one bug. Without this patch, touching GPA0 pin on
S3C64XX platform causes kernel oops.

Reviewed-by: Kyungmin Park <[email protected]>
Signed-off-by: Marek Szyprowski <[email protected]>
Signed-off-by: Ben Dooks <[email protected]>

diff --git a/arch/arm/plat-s3c/gpio-config.c b/arch/arm/plat-s3c/gpio-config.c
index 08044dec9731ec3890c76d9ac09e77c7d0091223..456969b6fa0d6670a989d1d28d85b214d9d9bf1d 100644 (file)
--- a/arch/arm/plat-s3c/gpio-config.c
+++ b/arch/arm/plat-s3c/gpio-config.c
@@ -119,7 +119,7 @@ int s3c_gpio_setcfg_s3c64xx_4bit(struct s3c_gpio_chip *chip,
        unsigned int shift = (off & 7) * 4;
        u32 con;
 
-       if (off < 8 && chip->chip.ngpio >= 8)
+       if (off < 8 && chip->chip.ngpio > 8)
                reg -= 4;
 
        if (s3c_gpio_is_cfg_special(cfg)) {