gpio: altera-a10sr: Trivial coding style fix

Change the coding style to make it does error checking first.
This also fixes checkpatch warning about line over 80 characters.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Tested by: Thor Thayer <thor.thayer@linux.intel.com>
Reviewed by: Thor Thayer <thor.thayer@linux.intel.com>
Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>

drivers/gpio/gpio-altera-a10sr.c

@@ -58,19 +58,20 @@ static void altr_a10sr_gpio_set(struct gpio_chip *chip, unsigned int offset,
 static int altr_a10sr_gpio_direction_input(struct gpio_chip *gc,
 					   unsigned int nr)
 {
-	if (nr >= (ALTR_A10SR_IN_VALID_RANGE_LO - ALTR_A10SR_LED_VALID_SHIFT))
-		return 0;
-	return -EINVAL;
+	if (nr < (ALTR_A10SR_IN_VALID_RANGE_LO - ALTR_A10SR_LED_VALID_SHIFT))
+		return -EINVAL;
+
+	return 0;
 }
 
 static int altr_a10sr_gpio_direction_output(struct gpio_chip *gc,
 					    unsigned int nr, int value)
 {
-	if (nr <= (ALTR_A10SR_OUT_VALID_RANGE_HI - ALTR_A10SR_LED_VALID_SHIFT)) {
-		altr_a10sr_gpio_set(gc, nr, value);
-		return 0;
-	}
-	return -EINVAL;
+	if (nr > (ALTR_A10SR_OUT_VALID_RANGE_HI - ALTR_A10SR_LED_VALID_SHIFT))
+		return -EINVAL;
+
+	altr_a10sr_gpio_set(gc, nr, value);
+	return 0;
 }
 
 static const struct gpio_chip altr_a10sr_gc = {