Commit 7d1d8999 authored by Jean Delvare's avatar Jean Delvare
Browse files

i2c: Constify i2c_get_clientdata's parameter 



i2c_get_clientdata doesn't change the i2c_client it is passed as a
parameter, so it can be constified. Same for i2c_get_adapdata.

Signed-off-by: default avatarJean Delvare <khali@linux-fr.org>
parent d955cafb

Documentation/i2c/writing-clients

+1 −1
Original line number Diff line number Diff line
@@ -83,7 +83,7 @@ be very useful. 
	void i2c_set_clientdata(struct i2c_client *client, void *data);



	/* retrieve the value */

	void *i2c_get_clientdata(struct i2c_client *client);

	void *i2c_get_clientdata(const struct i2c_client *client);



An example structure is below.

include/linux/device.h

+1 −1
Original line number Diff line number Diff line
@@ -450,7 +450,7 @@ static inline void set_dev_node(struct device *dev, int node) 
}

#endif



static inline void *dev_get_drvdata(struct device *dev)

static inline void *dev_get_drvdata(const struct device *dev)

{

	return dev->driver_data;

}

include/linux/i2c.h

+2 −2
Original line number Diff line number Diff line
@@ -224,7 +224,7 @@ static inline struct i2c_client *kobj_to_i2c_client(struct kobject *kobj) 
	return to_i2c_client(dev);

}



static inline void *i2c_get_clientdata (struct i2c_client *dev)

static inline void *i2c_get_clientdata(const struct i2c_client *dev)

{

	return dev_get_drvdata (&dev->dev);

}
@@ -369,7 +369,7 @@ struct i2c_adapter { 
};

#define to_i2c_adapter(d) container_of(d, struct i2c_adapter, dev)



static inline void *i2c_get_adapdata (struct i2c_adapter *dev)

static inline void *i2c_get_adapdata(const struct i2c_adapter *dev)

{

	return dev_get_drvdata (&dev->dev);

}