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Commit 3b5f794b authored by Jean Delvare's avatar Jean Delvare
Browse files

i2c: Rename i2c_check_addr to i2c_check_addr_busy 



Otherwise it's not clear what it is checking.

Also move the function to save a forward declaration.

Signed-off-by: default avatarJean Delvare <khali@linux-fr.org>
parent 656b8761

drivers/i2c/i2c-core.c

+19 −19
Original line number Diff line number Diff line
@@ -47,7 +47,6 @@ static DEFINE_MUTEX(core_lock); 
static DEFINE_IDR(i2c_adapter_idr);



static struct device_type i2c_client_type;

static int i2c_check_addr(struct i2c_adapter *adapter, int addr);

static int i2c_detect(struct i2c_adapter *adapter, struct i2c_driver *driver);



/* ------------------------------------------------------------------------- */
@@ -408,6 +407,22 @@ static int i2c_check_addr_validity(unsigned short addr) 
	return 0;

}



static int __i2c_check_addr_busy(struct device *dev, void *addrp)

{

	struct i2c_client	*client = i2c_verify_client(dev);

	int			addr = *(int *)addrp;



	if (client && client->addr == addr)

		return -EBUSY;

	return 0;

}



static int i2c_check_addr_busy(struct i2c_adapter *adapter, int addr)

{

	return device_for_each_child(&adapter->dev, &addr,

				     __i2c_check_addr_busy);

}



/**

 * i2c_new_device - instantiate an i2c device

 * @adap: the adapter managing the device
@@ -456,7 +471,7 @@ i2c_new_device(struct i2c_adapter *adap, struct i2c_board_info const *info) 
	}



	/* Check for address business */

	status = i2c_check_addr(adap, client->addr);

	status = i2c_check_addr_busy(adap, client->addr);

	if (status)

		goto out_err;
@@ -1064,21 +1079,6 @@ EXPORT_SYMBOL(i2c_del_driver); 


/* ------------------------------------------------------------------------- */



static int __i2c_check_addr(struct device *dev, void *addrp)

{

	struct i2c_client	*client = i2c_verify_client(dev);

	int			addr = *(int *)addrp;



	if (client && client->addr == addr)

		return -EBUSY;

	return 0;

}



static int i2c_check_addr(struct i2c_adapter *adapter, int addr)

{

	return device_for_each_child(&adapter->dev, &addr, __i2c_check_addr);

}



/**

 * i2c_use_client - increments the reference count of the i2c client structure

 * @client: the client being referenced
@@ -1369,7 +1369,7 @@ static int i2c_detect_address(struct i2c_client *temp_client, 
	}



	/* Skip if already in use */

	if (i2c_check_addr(adapter, addr))

	if (i2c_check_addr_busy(adapter, addr))

		return 0;



	/* Make sure there is something at this address */
@@ -1475,7 +1475,7 @@ i2c_new_probed_device(struct i2c_adapter *adap, 
		}



		/* Check address availability */

		if (i2c_check_addr(adap, addr_list[i])) {

		if (i2c_check_addr_busy(adap, addr_list[i])) {

			dev_dbg(&adap->dev, "Address 0x%02x already in "

				"use, not probing\n", addr_list[i]);

			continue;