mfd: max8997: 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/max8997.c

@@ -185,25 +185,25 @@ static int max8997_i2c_probe(struct i2c_client *i2c,
 
 	mutex_init(&max8997->iolock);
 
-	max8997->rtc = i2c_new_dummy(i2c->adapter, I2C_ADDR_RTC);
-	if (!max8997->rtc) {
+	max8997->rtc = i2c_new_dummy_device(i2c->adapter, I2C_ADDR_RTC);
+	if (IS_ERR(max8997->rtc)) {
 		dev_err(max8997->dev, "Failed to allocate I2C device for RTC\n");
-		return -ENODEV;
+		return PTR_ERR(max8997->rtc);
 	}
 	i2c_set_clientdata(max8997->rtc, max8997);
 
-	max8997->haptic = i2c_new_dummy(i2c->adapter, I2C_ADDR_HAPTIC);
-	if (!max8997->haptic) {
+	max8997->haptic = i2c_new_dummy_device(i2c->adapter, I2C_ADDR_HAPTIC);
+	if (IS_ERR(max8997->haptic)) {
 		dev_err(max8997->dev, "Failed to allocate I2C device for Haptic\n");
-		ret = -ENODEV;
+		ret = PTR_ERR(max8997->haptic);
 		goto err_i2c_haptic;
 	}
 	i2c_set_clientdata(max8997->haptic, max8997);
 
-	max8997->muic = i2c_new_dummy(i2c->adapter, I2C_ADDR_MUIC);
-	if (!max8997->muic) {
+	max8997->muic = i2c_new_dummy_device(i2c->adapter, I2C_ADDR_MUIC);
+	if (IS_ERR(max8997->muic)) {
 		dev_err(max8997->dev, "Failed to allocate I2C device for MUIC\n");
-		ret = -ENODEV;
+		ret = PTR_ERR(max8997->muic);
 		goto err_i2c_muic;
 	}
 	i2c_set_clientdata(max8997->muic, max8997);