mfd: da9052: Simplify function return logic

The invoked functions already return zero on success or a negative
errno code so there is no need to open code the logic in the caller.
Signed-off-by: NJavier Martinez Canillas <javier@osg.samsung.com>
Acked-by: NAdam Thomson <Adam.Thomson.Opensource@diasemi.com>
Signed-off-by: NLee Jones <lee.jones@linaro.org>

drivers/mfd/da9052-i2c.c

@@ -174,11 +174,7 @@ static int da9052_i2c_probe(struct i2c_client *client,
 		return ret;
 	}
 
-	ret = da9052_device_init(da9052, id->driver_data);
-	if (ret != 0)
-		return ret;
-
-	return 0;
+	return da9052_device_init(da9052, id->driver_data);
 }
 
 static int da9052_i2c_remove(struct i2c_client *client)

drivers/mfd/da9052-spi.c

@@ -56,11 +56,7 @@ static int da9052_spi_probe(struct spi_device *spi)
 		return ret;
 	}
 
-	ret = da9052_device_init(da9052, id->driver_data);
-	if (ret != 0)
-		return ret;
-
-	return 0;
+	return da9052_device_init(da9052, id->driver_data);
 }
 
 static int da9052_spi_remove(struct spi_device *spi)