iio: imu: st_lsm6dsx: Drop unneeded explicit castings

In a 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/20210312134743.4055-1-andriy.shevchenko@linux.intel.comSigned-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_i2c.c

@@ -29,8 +29,7 @@ static int st_lsm6dsx_i2c_probe(struct i2c_client *client,
 
 	regmap = devm_regmap_init_i2c(client, &st_lsm6dsx_i2c_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/imu/st_lsm6dsx/st_lsm6dsx_i3c.c

@@ -34,8 +34,7 @@ static int st_lsm6dsx_i3c_probe(struct i3c_device *i3cdev)
 
 	regmap = devm_regmap_init_i3c(i3cdev, &st_lsm6dsx_i3c_regmap_config);
 	if (IS_ERR(regmap)) {
-		dev_err(&i3cdev->dev, "Failed to register i3c regmap %d\n",
-			(int)PTR_ERR(regmap));
+		dev_err(&i3cdev->dev, "Failed to register i3c regmap %ld\n", PTR_ERR(regmap));
 		return PTR_ERR(regmap);
 	}
 

drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_spi.c

@@ -29,8 +29,7 @@ static int st_lsm6dsx_spi_probe(struct spi_device *spi)
 
 	regmap = devm_regmap_init_spi(spi, &st_lsm6dsx_spi_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);
 	}