gpio: gpiolib: remove shadowed variable

After refactoring, we had two variables for the same thing. Remove the
second declaration, one is enough here. Found by cppcheck.

drivers/gpio/gpiolib.c:2551:17: warning: Local variable 'ret' shadows outer variable [shadowVariable]

Fixes: d377f56f ("gpio: gpiolib: Normalize return code variable name")
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>

drivers/gpio/gpiolib.c

@@ -2557,7 +2557,7 @@ int gpiod_get_array_value_complex(bool raw, bool can_sleep,
 		struct gpio_chip *gc = desc_array[i]->gdev->chip;
 		unsigned long fastpath[2 * BITS_TO_LONGS(FASTPATH_NGPIO)];
 		unsigned long *mask, *bits;
-		int first, j, ret;
+		int first, j;
 
 		if (likely(gc->ngpio <= FASTPATH_NGPIO)) {
 			mask = fastpath;