X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=drivers%2Fbase%2Fbus.c;h=83fa8b291a59ebdbcdf036cb331d86a9fe564a85;hb=b197ba3c70638a3a2ae39296781912f26ac0f991;hp=48718b7f4fa01737326174f42a775cdabbcc81a8;hpb=79072f38909e3d9883317238887460c39ddcc4cb;p=linux-2.6

diff --git a/drivers/base/bus.c b/drivers/base/bus.c
index 48718b7f4f..83fa8b291a 100644
--- a/drivers/base/bus.c
+++ b/drivers/base/bus.c
@@ -8,7 +8,6 @@
  *
  */
 
-#include <linux/config.h>
 #include <linux/device.h>
 #include <linux/module.h>
 #include <linux/errno.h>
@@ -188,6 +187,11 @@ static ssize_t driver_bind(struct device_driver *drv,
 		up(&dev->sem);
 		if (dev->parent)
 			up(&dev->parent->sem);
+
+		if (err > 0) 		/* success */
+			err = count;
+		else if (err == 0)	/* driver didn't accept device */
+			err = -ENODEV;
 	}
 	put_device(dev);
 	put_bus(bus);
@@ -357,8 +361,7 @@ static void device_remove_attrs(struct bus_type * bus, struct device * dev)
  *	@dev:	device being added
  *
  *	- Add the device to its bus's list of devices.
- *	- Try to attach to driver.
- *	- Create link to device's physical location.
+ *	- Create link to device's bus.
  */
 int bus_add_device(struct device * dev)
 {
@@ -367,17 +370,32 @@ int bus_add_device(struct device * dev)
 
 	if (bus) {
 		pr_debug("bus %s: add device %s\n", bus->name, dev->bus_id);
-		device_attach(dev);
-		klist_add_tail(&dev->knode_bus, &bus->klist_devices);
 		error = device_add_attrs(bus, dev);
 		if (!error) {
 			sysfs_create_link(&bus->devices.kobj, &dev->kobj, dev->bus_id);
+			sysfs_create_link(&dev->kobj, &dev->bus->subsys.kset.kobj, "subsystem");
 			sysfs_create_link(&dev->kobj, &dev->bus->subsys.kset.kobj, "bus");
 		}
 	}
 	return error;
 }
 
+/**
+ *	bus_attach_device - add device to bus
+ *	@dev:	device tried to attach to a driver
+ *
+ *	- Try to attach to driver.
+ */
+void bus_attach_device(struct device * dev)
+{
+	struct bus_type * bus = dev->bus;
+
+	if (bus) {
+		device_attach(dev);
+		klist_add_tail(&dev->knode_bus, &bus->klist_devices);
+	}
+}
+
 /**
  *	bus_remove_device - remove device from bus
  *	@dev:	device to be removed
@@ -390,6 +408,7 @@ int bus_add_device(struct device * dev)
 void bus_remove_device(struct device * dev)
 {
 	if (dev->bus) {
+		sysfs_remove_link(&dev->kobj, "subsystem");
 		sysfs_remove_link(&dev->kobj, "bus");
 		sysfs_remove_link(&dev->bus->devices.kobj, dev->bus_id);
 		device_remove_attrs(dev->bus, dev);
@@ -727,14 +746,9 @@ EXPORT_SYMBOL_GPL(bus_for_each_dev);
 EXPORT_SYMBOL_GPL(bus_find_device);
 EXPORT_SYMBOL_GPL(bus_for_each_drv);
 
-EXPORT_SYMBOL_GPL(bus_add_device);
-EXPORT_SYMBOL_GPL(bus_remove_device);
 EXPORT_SYMBOL_GPL(bus_register);
 EXPORT_SYMBOL_GPL(bus_unregister);
 EXPORT_SYMBOL_GPL(bus_rescan_devices);
-EXPORT_SYMBOL_GPL(get_bus);
-EXPORT_SYMBOL_GPL(put_bus);
-EXPORT_SYMBOL_GPL(find_bus);
 
 EXPORT_SYMBOL_GPL(bus_create_file);
 EXPORT_SYMBOL_GPL(bus_remove_file);