i2c: core: always have a named variable in arguments

Much better to read and understand.
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>

drivers/i2c/i2c-core-base.c

@@ -1671,7 +1671,7 @@ EXPORT_SYMBOL_GPL(i2c_parse_fw_timings);
 
 /* ------------------------------------------------------------------------- */
 
-int i2c_for_each_dev(void *data, int (*fn)(struct device *, void *))
+int i2c_for_each_dev(void *data, int (*fn)(struct device *dev, void *data))
 {
 	int res;
 
@@ -2284,7 +2284,7 @@ struct i2c_client *
 i2c_new_probed_device(struct i2c_adapter *adap,
 		      struct i2c_board_info *info,
 		      unsigned short const *addr_list,
-		      int (*probe)(struct i2c_adapter *, unsigned short addr))
+		      int (*probe)(struct i2c_adapter *adap, unsigned short addr))
 {
 	int i;