[EMAIL PROTECTED], 2005-03-24 10:50:24-08:00, [EMAIL PROTECTED]
[driver core] Use bus_for_each_{dev,drv} for driver binding.
- Now possible, since the lists are locked using the klist lock and not the
global rwsem.
Signed-off-by: Patrick Mochel <[EMAIL PROTECTED]>
diff -Nru a/drivers/base/dd.c b/drivers/base/dd.c
--- a/drivers/base/dd.c 2005-03-24 20:33:53 -08:00
+++ b/drivers/base/dd.c 2005-03-24 20:33:53 -08:00
@@ -85,6 +85,29 @@
}
+static int __device_attach(struct device_driver * drv, void * data)
+{
+ struct device * dev = data;
+ int error;
+
+ error = driver_probe_device(drv, dev);
+
+ if (error == -ENODEV && error == -ENXIO) {
+ /* Driver matched, but didn't support device
+ * or device not found.
+ * Not an error; keep going.
+ */
+ error = 0;
+ } else {
+ /* driver matched but the probe failed */
+ printk(KERN_WARNING
+ "%s: probe of %s failed with error %d\n",
+ drv->name, dev->bus_id, error);
+ }
+ return 0;
+}
+
+
/**
* device_attach - try to attach device to a driver.
* @dev: device.
@@ -95,34 +118,35 @@
*/
int device_attach(struct device * dev)
{
- struct bus_type * bus = dev->bus;
- struct list_head * entry;
- int error;
-
if (dev->driver) {
device_bind_driver(dev);
return 1;
}
- if (bus->match) {
- list_for_each(entry, &bus->drivers.list) {
- struct device_driver * drv = to_drv(entry);
- error = driver_probe_device(drv, dev);
- if (!error)
- /* success, driver matched */
- return 1;
- if (error != -ENODEV && error != -ENXIO)
+ return bus_for_each_drv(dev->bus, NULL, dev, __device_attach);
+}
+
+
+static int __driver_attach(struct device * dev, void * data)
+{
+ struct device_driver * drv = data;
+ int error = 0;
+
+ if (!dev->driver) {
+ error = driver_probe_device(drv, dev);
+ if (error) {
+ if (error != -ENODEV) {
/* driver matched but the probe failed */
printk(KERN_WARNING
- "%s: probe of %s failed with error %d\n",
- drv->name, dev->bus_id, error);
+ "%s: probe of %s failed with error %d\n",
+ drv->name, dev->bus_id, error);
+ } else
+ error = 0;
}
}
-
return 0;
}
-
/**
* driver_attach - try to bind driver to devices.
* @drv: driver.
@@ -137,24 +161,7 @@
*/
void driver_attach(struct device_driver * drv)
{
- struct bus_type * bus = drv->bus;
- struct list_head * entry;
- int error;
-
- if (!bus->match)
- return;
-
- list_for_each(entry, &bus->devices.list) {
- struct device * dev = container_of(entry, struct device,
bus_list);
- if (!dev->driver) {
- error = driver_probe_device(drv, dev);
- if (error && (error != -ENODEV))
- /* driver matched but the probe failed */
- printk(KERN_WARNING
- "%s: probe of %s failed with error %d\n",
- drv->name, dev->bus_id, error);
- }
- }
+ bus_for_each_dev(drv->bus, NULL, drv, __driver_attach);
}
-
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