iio: chemical: bmp680: Drop unneeded explicit castings

In few places the unnecessary explicit castings are being used.
Drop them for good.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20210312134349.3472-1-andriy.shevchenko@linux.intel.comSigned-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

drivers/iio/chemical/bme680_i2c.c

@@ -26,8 +26,7 @@ static int bme680_i2c_probe(struct i2c_client *client,
 
 	regmap = devm_regmap_init_i2c(client, &bme680_regmap_config);
 	if (IS_ERR(regmap)) {
-		dev_err(&client->dev, "Failed to register i2c regmap %d\n",
-				(int)PTR_ERR(regmap));
+		dev_err(&client->dev, "Failed to register i2c regmap %ld\n", PTR_ERR(regmap));
 		return PTR_ERR(regmap);
 	}
 

drivers/iio/chemical/bme680_spi.c

@@ -132,8 +132,7 @@ static int bme680_spi_probe(struct spi_device *spi)
 	regmap = devm_regmap_init(&spi->dev, &bme680_regmap_bus,
 				  bus_context, &bme680_regmap_config);
 	if (IS_ERR(regmap)) {
-		dev_err(&spi->dev, "Failed to register spi regmap %d\n",
-				(int)PTR_ERR(regmap));
+		dev_err(&spi->dev, "Failed to register spi regmap %ld\n", PTR_ERR(regmap));
 		return PTR_ERR(regmap);
 	}