sysfs: reinstate count parameter for sysfs_ops.store() methods.

- Fixup bus, driver, and class methods.

drivers/base/bus.c

@@ -43,14 +43,15 @@ drv_attr_show(struct kobject * kobj, struct attribute * attr, char * buf)
 }
 
 static ssize_t
-drv_attr_store(struct kobject * kobj, struct attribute * attr, const char * buf)
+drv_attr_store(struct kobject * kobj, struct attribute * attr, 
+	       const char * buf, size_t count)
 {
 	struct driver_attribute * drv_attr = to_drv_attr(attr);
 	struct device_driver * drv = to_driver(kobj);
 	ssize_t ret = 0;
 
 	if (drv_attr->store)
-		ret = drv_attr->store(drv,buf);
+		ret = drv_attr->store(drv,buf,count);
 	return ret;
 }
 
@@ -90,14 +91,15 @@ bus_attr_show(struct kobject * kobj, struct attribute * attr, char * buf)
 }
 
 static ssize_t
-bus_attr_store(struct kobject * kobj, struct attribute * attr, const char * buf)
+bus_attr_store(struct kobject * kobj, struct attribute * attr, 
+	       const char * buf, size_t count)
 {
 	struct bus_attribute * bus_attr = to_bus_attr(attr);
 	struct bus_type * bus = to_bus(kobj);
 	ssize_t ret = 0;
 
 	if (bus_attr->store)
-		ret = bus_attr->store(bus,buf);
+		ret = bus_attr->store(bus,buf,count);
 	return ret;
 }
 

drivers/base/class.c

@@ -26,14 +26,15 @@ devclass_attr_show(struct kobject * kobj, struct attribute * attr, char * buf)
 }
 
 static ssize_t
-devclass_attr_store(struct kobject * kobj, struct attribute * attr, const char * buf)
+devclass_attr_store(struct kobject * kobj, struct attribute * attr, 
+		    const char * buf, size_t count)
 {
 	struct devclass_attribute * class_attr = to_class_attr(attr);
 	struct device_class * dc = to_class(kobj);
 	ssize_t ret = 0;
 
 	if (class_attr->store)
-		ret = class_attr->store(dc,buf);
+		ret = class_attr->store(dc,buf,count);
 	return ret;
 }
 

include/linux/device.h

@@ -98,7 +98,7 @@ int bus_for_each_drv(struct bus_type * bus, struct device_driver * start,
 struct bus_attribute {
 	struct attribute	attr;
 	ssize_t (*show)(struct bus_type *, char * buf);
-	ssize_t (*store)(struct bus_type *, const char * buf);
+	ssize_t (*store)(struct bus_type *, const char * buf, size_t count);
 };
 
 #define BUS_ATTR(_name,_mode,_show,_store)	\
@@ -141,7 +141,7 @@ extern void put_driver(struct device_driver * drv);
 struct driver_attribute {
 	struct attribute	attr;
 	ssize_t (*show)(struct device_driver *, char * buf);
-	ssize_t (*store)(struct device_driver *, const char * buf);
+	ssize_t (*store)(struct device_driver *, const char * buf, size_t count);
 };
 
 #define DRIVER_ATTR(_name,_mode,_show,_store)	\
@@ -182,7 +182,7 @@ extern void put_devclass(struct device_class *);
 struct devclass_attribute {
 	struct attribute	attr;
 	ssize_t (*show)(struct device_class *, char * buf);
-	ssize_t (*store)(struct device_class *, const char * buf);
+	ssize_t (*store)(struct device_class *, const char * buf, size_t count);
 };
 
 #define DEVCLASS_ATTR(_name,_str,_mode,_show,_store)	\