Merge bk://linux.bkbits.net/linux-2.5

into osdl.org:/home/mochel/src/kernel/devel/linux-2.5-virgin

drivers/base/bus.c

@@ -19,7 +19,7 @@
 static DECLARE_MUTEX(bus_sem);
 
 #define to_dev(node) container_of(node,struct device,bus_list)
-#define to_drv(node) container_of(node,struct device_driver,bus_list)
+#define to_drv(node) container_of(node,struct device_driver,kobj.entry)
 
 #define to_bus_attr(_attr) container_of(_attr,struct bus_attribute,attr)
 #define to_bus(obj) container_of(obj,struct bus_type,subsys.kobj)
@@ -203,9 +203,9 @@ int bus_for_each_drv(struct bus_type * bus, struct device_driver * start,
 	if(!(bus = get_bus(bus)))
 		return -EINVAL;
 
-	head = start ? &start->bus_list : &bus->drivers;
+	head = start ? &start->kobj.entry : &bus->drvsubsys.list;
 
-	down_read(&bus->subsys.rwsem);
+	down_read(&bus->drvsubsys.rwsem);
 	list_for_each(entry,head) {
 		struct device_driver * drv = get_driver(to_drv(entry));
 		error = fn(drv,data);
@@ -213,7 +213,7 @@ int bus_for_each_drv(struct bus_type * bus, struct device_driver * start,
 		if(error)
 			break;
 	}
-	up_read(&bus->subsys.rwsem);
+	up_read(&bus->drvsubsys.rwsem);
 	return error;
 }
 
@@ -287,9 +287,8 @@ static int device_attach(struct device * dev)
 	if (!bus->match)
 		return 0;
 
-	list_for_each(entry,&bus->drivers) {
-		struct device_driver * drv = 
-			container_of(entry,struct device_driver,bus_list);
+	list_for_each(entry,&bus->drvsubsys.list) {
+		struct device_driver * drv = to_drv(entry);
 		if (!(error = bus_match(dev,drv)))
 			break;
 	}
@@ -437,7 +436,6 @@ int bus_add_driver(struct device_driver * drv)
 		kobject_register(&drv->kobj);
 
 		devclass_add_driver(drv);
-		list_add_tail(&drv->bus_list,&bus->drivers);
 		driver_attach(drv);
 		up_write(&bus->subsys.rwsem);
 	}
@@ -460,7 +458,6 @@ void bus_remove_driver(struct device_driver * drv)
 		down_write(&drv->bus->subsys.rwsem);
 		pr_debug("bus %s: remove driver %s\n",drv->bus->name,drv->name);
 		driver_detach(drv);
-		list_del_init(&drv->bus_list);
 		devclass_remove_driver(drv);
 		kobject_unregister(&drv->kobj);
 		up_write(&drv->bus->subsys.rwsem);
@@ -491,7 +488,6 @@ void put_bus(struct bus_type * bus)
 int bus_register(struct bus_type * bus)
 {
 	INIT_LIST_HEAD(&bus->devices);
-	INIT_LIST_HEAD(&bus->drivers);
 
 	down(&bus_sem);
 	strncpy(bus->subsys.kobj.name,bus->name,KOBJ_NAME_LEN);

drivers/base/intf.c

@@ -14,9 +14,6 @@
 
 #define to_data(e) container_of(e,struct intf_data,kobj.entry)
 
-#define intf_from_data(d) container_of(d->kobj.subsys,struct device_interface, subsys);
-
-
 /**
  *	intf_dev_link - create sysfs symlink for interface.
  *	@data:	interface data descriptor.
@@ -61,15 +58,18 @@ static void intf_dev_unlink(struct intf_data * data)
 
 int interface_add_data(struct intf_data * data)
 {
-	struct device_interface * intf = intf_from_data(data);
+	struct device_interface * intf = data->intf;
 
-	data->intf_num = data->intf->devnum++;
+	if (intf) {
+		data->intf_num = intf->devnum++;
 		data->kobj.subsys = &intf->subsys;
 		kobject_register(&data->kobj);
 
 		list_add_tail(&data->dev_entry,&data->dev->intf_list);
 		intf_dev_link(data);
 		return 0;
+	}
+	return -EINVAL;
 }
 
 
@@ -121,9 +121,9 @@ static int add(struct device_interface * intf, struct device * dev)
 
 static void del(struct intf_data * data)
 {
-	struct device_interface * intf = intf_from_data(data);
+	struct device_interface * intf = data->intf;
 
-	pr_debug(" -> %s ",data->intf->name);
+	pr_debug(" -> %s ",intf->name);
 	interface_remove_data(data);
 	if (intf->remove_device)
 		intf->remove_device(data);

fs/partitions/check.c

@@ -19,7 +19,6 @@
 #include <linux/blk.h>
 #include <linux/kmod.h>
 #include <linux/ctype.h>
-#include <../drivers/base/fs/fs.h>	/* Eeeeewwwww */
 
 #include "check.h"
 
@@ -399,13 +398,15 @@ void register_disk(struct gendisk *disk)
 	struct block_device *bdev;
 	char *s;
 	int j;
+	int err;
 
 	strncpy(disk->kobj.name,disk->disk_name,KOBJ_NAME_LEN);
 	/* ewww... some of these buggers have / in name... */
 	s = strchr(disk->kobj.name, '/');
 	if (s)
 		*s = '!';
-	kobject_add(&disk->kobj);
+	if ((err = kobject_add(&disk->kobj)))
+		return;
 	disk_sysfs_symlinks(disk);
 
 	if (disk->flags & GENHD_FL_CD)

include/linux/device.h

@@ -69,7 +69,6 @@ struct bus_type {
 	struct subsystem	drvsubsys;
 	struct subsystem	devsubsys;
 	struct list_head	devices;
-	struct list_head	drivers;
 
 	int		(*match)(struct device * dev, struct device_driver * drv);
 	struct device * (*add)	(struct device * parent, char * bus_id);
@@ -119,7 +118,6 @@ struct device_driver {
 
 	struct semaphore	unload_sem;
 	struct kobject		kobj;
-	struct list_head	bus_list;
 	struct list_head	class_list;
 	struct list_head	devices;
 

include/linux/kobject.h

@@ -52,7 +52,7 @@ extern void subsystem_unregister(struct subsystem *);
 
 static inline struct subsystem * subsys_get(struct subsystem * s)
 {
-	return container_of(kobject_get(&s->kobj),struct subsystem,kobj);
+	return s ? container_of(kobject_get(&s->kobj),struct subsystem,kobj) : NULL;
 }
 
 static inline void subsys_put(struct subsystem * s)

lib/kobject.c

@@ -74,10 +74,13 @@ int kobject_add(struct kobject * kobj)
 {
 	int error = 0;
 	struct subsystem * s = kobj->subsys;
-	struct kobject * parent = kobject_get(kobj->parent);
+	struct kobject * parent;
 
 	if (!(kobj = kobject_get(kobj)))
 		return -ENOENT;
+
+	parent = kobject_get(kobj->parent);
+
 	pr_debug("kobject %s: registering. parent: %s, subsys: %s\n",
 		 kobj->name, parent ? parent->name : "<NULL>", 
 		 kobj->subsys ? kobj->subsys->kobj.name : "<NULL>" );
@@ -93,8 +96,8 @@ int kobject_add(struct kobject * kobj)
 		up_write(&s->rwsem);
 	}
 	error = create_dir(kobj);
-	if (error && kobj->parent)
-		kobject_put(kobj->parent);
+	if (error && parent)
+		kobject_put(parent);
 	return error;
 }
 
@@ -218,7 +221,7 @@ int subsystem_register(struct subsystem * s)
 		s->kobj.parent = &s->parent->kobj;
 	pr_debug("subsystem %s: registering, parent: %s\n",
 		 s->kobj.name,s->parent ? s->parent->kobj.name : "<none>");
-	return kobject_register(&s->kobj);
+	return kobject_add(&s->kobj);
 }
 
 void subsystem_unregister(struct subsystem * s)