[PATCH] Add bus_type probe, remove, shutdown methods.
Add bus_type probe, remove and shutdown methods to replace the
corresponding methods in struct device_driver. This matches
the way we handle the suspend/resume methods.
Since the bus methods override the device_driver methods, warn
if a device driver is registered whose methods will not be
called.
The long-term idea is to remove the device_driver methods entirely.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
diff --git a/drivers/base/dd.c b/drivers/base/dd.c
index 2b90501..730a9ce 100644
--- a/drivers/base/dd.c
+++ b/drivers/base/dd.c
@@ -78,7 +78,13 @@
pr_debug("%s: Matched Device %s with Driver %s\n",
drv->bus->name, dev->bus_id, drv->name);
dev->driver = drv;
- if (drv->probe) {
+ if (dev->bus->probe) {
+ ret = dev->bus->probe(dev);
+ if (ret) {
+ dev->driver = NULL;
+ goto ProbeFailed;
+ }
+ } else if (drv->probe) {
ret = drv->probe(dev);
if (ret) {
dev->driver = NULL;
@@ -203,7 +209,9 @@
sysfs_remove_link(&dev->kobj, "driver");
klist_remove(&dev->knode_driver);
- if (drv->remove)
+ if (dev->bus->remove)
+ dev->bus->remove(dev);
+ else if (drv->remove)
drv->remove(dev);
dev->driver = NULL;
put_driver(drv);