[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 <kyungmin.park@samsung.com> Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com> Signed-off-by: Ben Dooks <ben-linux@fluff.org>
git-mirror · Jun 22, 2009 · 49fb88a · 49fb88a
1 parent 0b49573
commit 49fb88a
Showing 1 changed file with 1 addition and 1 deletion.
diff --git 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)) {