Re: [PATCH v2] iio: magn: ak8975: fix unnecessary casting between char* and const char*

From: Jonathan Cameron
Date: Sun Sep 14 2014 - 13:31:35 EST


On 08/09/14 15:18, Irina Tirdea wrote:
> Use const char* instead of casting const char* to char*.
>
> Signed-off-by: Irina Tirdea <irina.tirdea@xxxxxxxxx>
Applied to the togreg branch of iio.git - initially pushed out as testing.

Thanks,

Jonathan
> ---
>
> Changes in v2:
> - fixed identation as Hartmut Knaack suggested
>
> drivers/iio/magnetometer/ak8975.c | 10 +++++-----
> 1 file changed, 5 insertions(+), 5 deletions(-)
>
> diff --git a/drivers/iio/magnetometer/ak8975.c b/drivers/iio/magnetometer/ak8975.c
> index a235792..bf5ef07 100644
> --- a/drivers/iio/magnetometer/ak8975.c
> +++ b/drivers/iio/magnetometer/ak8975.c
> @@ -477,8 +477,8 @@ static const struct acpi_device_id ak_acpi_match[] = {
> };
> MODULE_DEVICE_TABLE(acpi, ak_acpi_match);
>
> -static char *ak8975_match_acpi_device(struct device *dev,
> - enum asahi_compass_chipset *chipset)
> +static const char *ak8975_match_acpi_device(struct device *dev,
> + enum asahi_compass_chipset *chipset)
> {
> const struct acpi_device_id *id;
>
> @@ -487,7 +487,7 @@ static char *ak8975_match_acpi_device(struct device *dev,
> return NULL;
> *chipset = (int)id->driver_data;
>
> - return (char *)dev_name(dev);
> + return dev_name(dev);
> }
>
> static int ak8975_probe(struct i2c_client *client,
> @@ -497,7 +497,7 @@ static int ak8975_probe(struct i2c_client *client,
> struct iio_dev *indio_dev;
> int eoc_gpio;
> int err;
> - char *name = NULL;
> + const char *name = NULL;
>
> /* Grab and set up the supplied GPIO. */
> if (client->dev.platform_data)
> @@ -539,7 +539,7 @@ static int ak8975_probe(struct i2c_client *client,
> if (id) {
> data->chipset =
> (enum asahi_compass_chipset)(id->driver_data);
> - name = (char *) id->name;
> + name = id->name;
> } else if (ACPI_HANDLE(&client->dev))
> name = ak8975_match_acpi_device(&client->dev, &data->chipset);
> else
>
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