i2c: s3c2410: Fix code to free gpios

Store the requested gpios so that they can be freed on error/removal.
Signed-off-by: Abhilash Kesavan <a.kesavan@samsung.com>
Signed-off-by: Wolfram Sang <w.sang@pengutronix.de>

drivers/i2c/busses/i2c-s3c2410.c

@@ -806,6 +806,7 @@ static int s3c24xx_i2c_parse_dt_gpio(struct s3c24xx_i2c *i2c)
 			dev_err(i2c->dev, "invalid gpio[%d]: %d\n", idx, gpio);
 			goto free_gpio;
 		}
+		i2c->gpios[idx] = gpio;
 
 		ret = gpio_request(gpio, "i2c-bus");
 		if (ret) {