arm: ep93xx: Don't try to release not acquired GPIO lines

Fail path of ep93xx_keypad_acquire_gpio() tries to release
GPIO lines not acquired successfully before. Fix this.

Signed-off-by: Rafal Prylowski <prylowski@metasoft.pl>
Acked-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: Ryan Mallon <rmallon@gmail.com>

diff --git a/arch/arm/mach-ep93xx/core.c b/arch/arm/mach-ep93xx/core.c
index 8d2589588713d6c0b717c278660c212cd9f6e17b..2ea2ffc61875a2608ad790a9b8e10919a690f77b 100644 (file)
--- a/arch/arm/mach-ep93xx/core.c
+++ b/arch/arm/mach-ep93xx/core.c
@@ -734,7 +734,7 @@ int ep93xx_keypad_acquire_gpio(struct platform_device *pdev)
 fail_gpio_d:
        gpio_free(EP93XX_GPIO_LINE_C(i));
 fail_gpio_c:
-       for ( ; i >= 0; --i) {
+       for (--i; i >= 0; --i) {
                gpio_free(EP93XX_GPIO_LINE_C(i));
                gpio_free(EP93XX_GPIO_LINE_D(i));
        }