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

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Message-ID: <5415D0F0.9080001@kernel.org>
Date:	Sun, 14 Sep 2014 18:31:28 +0100
From:	Jonathan Cameron <jic23@...nel.org>
To:	Irina Tirdea <irina.tirdea@...el.com>, linux-iio@...r.kernel.org
CC:	Hartmut Knaack <knaack.h@....de>,
	Lars-Peter Clausen <lars@...afoo.de>,
	Peter Meerwald <pmeerw@...erw.net>,
	Srinivas Pandruvada <srinivas.pandruvada@...ux.intel.com>,
	linux-kernel@...r.kernel.org, Beomho Seo <beomho.seo@...sung.com>
Subject: Re: [PATCH v2] iio: magn: ak8975: fix unnecessary casting between
 char* and const char*

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@...el.com>
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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