mfd: palmas: Convert to i2c_new_dummy_device

Move from i2c_new_dummy() to i2c_new_dummy_device(), so we now get an
ERRPTR which we use in error handling.
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>

drivers/mfd/palmas.c

@@ -549,12 +549,12 @@ static int palmas_i2c_probe(struct i2c_client *i2c,
 			palmas->i2c_clients[i] = i2c;
 		else {
 			palmas->i2c_clients[i] =
-					i2c_new_dummy(i2c->adapter,
+					i2c_new_dummy_device(i2c->adapter,
 							i2c->addr + i);
-			if (!palmas->i2c_clients[i]) {
+			if (IS_ERR(palmas->i2c_clients[i])) {
 				dev_err(palmas->dev,
 					"can't attach client %d\n", i);
-				ret = -ENOMEM;
+				ret = PTR_ERR(palmas->i2c_clients[i]);
 				goto err_i2c;
 			}
 			palmas->i2c_clients[i]->dev.of_node = of_node_get(node);