[PATCH] w1: added private family data into w1_slave strucutre.

Add family_data to struct w1_slave.
Signed-off-by: NBen Gardner <bgardner@wabtec.com>
Signed-off-by: NEvgeniy Polyakov <johnpol@2ka.mipt.ru>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

drivers/w1/w1.h

@@ -75,6 +75,7 @@ struct w1_slave
 
 	struct w1_master	*master;
 	struct w1_family	*family;
+	void			*family_data;
 	struct device		dev;
 	struct completion	released;
 };