[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>

1 files changed, 4 insertions, 1 deletions

diff --git a/drivers/base/power/shutdown.c b/drivers/base/power/shutdown.c
index f50a08be424b..a47bb74da72b 100644
--- a/drivers/base/power/shutdown.c
+++ b/drivers/base/power/shutdown.c
@@ -40,7 +40,10 @@ void device_shutdown(void)
         down_write(&devices_subsys.rwsem);
         list_for_each_entry_reverse(dev, &devices_subsys.kset.list,
                                 kobj.entry) {
-                if (dev->driver && dev->driver->shutdown) {
+                if (dev->bus && dev->bus->shutdown) {
+                        dev_dbg(dev, "shutdown\n");
+                        dev->bus->shutdown(dev);
+                } else if (dev->driver && dev->driver->shutdown) {
                         dev_dbg(dev, "shutdown\n");
                         dev->driver->shutdown(dev);
                 }