return driver_probe_device(drv, dev);
}
-static int device_probe_drivers(void *data)
-{
- struct device *dev = data;
- int ret = 0;
-
- if (dev->bus) {
- down(&dev->sem);
- ret = bus_for_each_drv(dev->bus, NULL, dev, __device_attach);
- up(&dev->sem);
- }
- return ret;
-}
-
/**
* device_attach - try to attach device to a driver.
* @dev: device.
*
* Walk the list of drivers that the bus has and call
* driver_probe_device() for each pair. If a compatible
- * pair is found, break out and return. If the bus specifies
- * multithreaded probing, walking the list of drivers is done
- * on a probing thread.
+ * pair is found, break out and return.
*
* Returns 1 if the device was bound to a driver;
- * 0 if no matching device was found or multithreaded probing is done;
+ * 0 if no matching device was found;
* -ENODEV if the device is not registered.
*
* When called for a USB interface, @dev->parent->sem must be held.
int device_attach(struct device * dev)
{
int ret = 0;
- struct task_struct *probe_task = ERR_PTR(-ENOMEM);
down(&dev->sem);
if (dev->driver) {
ret = 0;
}
} else {
- if (dev->bus->multithread_probe)
- probe_task = kthread_run(device_probe_drivers, dev,
- "probe-%s", dev->bus_id);
- if(IS_ERR(probe_task))
- ret = bus_for_each_drv(dev->bus, NULL, dev,
- __device_attach);
+ ret = bus_for_each_drv(dev->bus, NULL, dev, __device_attach);
}
up(&dev->sem);
return ret;
return bus_for_each_dev(drv->bus, NULL, drv, __driver_attach);
}
-/**
- * device_release_driver - manually detach device from driver.
- * @dev: device.
- *
- * Manually detach device from driver.
- *
+/*
* __device_release_driver() must be called with @dev->sem held.
- * When called for a USB interface, @dev->parent->sem must be held
- * as well.
+ * When called for a USB interface, @dev->parent->sem must be held as well.
*/
-
static void __device_release_driver(struct device * dev)
{
struct device_driver * drv;
- drv = dev->driver;
+ drv = get_driver(dev->driver);
if (drv) {
- get_driver(drv);
driver_sysfs_remove(dev);
sysfs_remove_link(&dev->kobj, "driver");
klist_remove(&dev->knode_driver);
}
}
+/**
+ * device_release_driver - manually detach device from driver.
+ * @dev: device.
+ *
+ * Manually detach device from driver.
+ * When called for a USB interface, @dev->parent->sem must be held.
+ */
void device_release_driver(struct device * dev)
{
/*
}
}
-#ifdef CONFIG_PCI_MULTITHREAD_PROBE
-static int __init wait_for_probes(void)
-{
- DEFINE_WAIT(wait);
-
- printk(KERN_INFO "%s: waiting for %d threads\n", __FUNCTION__,
- atomic_read(&probe_count));
- if (!atomic_read(&probe_count))
- return 0;
- while (atomic_read(&probe_count)) {
- prepare_to_wait(&probe_waitqueue, &wait, TASK_UNINTERRUPTIBLE);
- if (atomic_read(&probe_count))
- schedule();
- }
- finish_wait(&probe_waitqueue, &wait);
- return 0;
-}
-
-core_initcall_sync(wait_for_probes);
-postcore_initcall_sync(wait_for_probes);
-arch_initcall_sync(wait_for_probes);
-subsys_initcall_sync(wait_for_probes);
-fs_initcall_sync(wait_for_probes);
-device_initcall_sync(wait_for_probes);
-late_initcall_sync(wait_for_probes);
-#endif
-
EXPORT_SYMBOL_GPL(device_bind_driver);
EXPORT_SYMBOL_GPL(device_release_driver);
EXPORT_SYMBOL_GPL(device_attach);