Greg KH
2005-06-30T06:07:35Z

[PATCH] driver core: change bus_rescan_devices to return void

No one was looking at the return value of bus_rescan_devices, and it
really wasn't anything that anyone in the kernel would ever care about.
So change it which enabled some counting code to be removed also.

Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

---
commit 23d3d602cb96addd3c1158424fb01a49ea5e81b1
tree 2daa85579c964bfe3d1a91fe365d202b8f38422b
parent afdce75f1eaebcf358b7594ba7969aade105c3b0
author Greg Kroah-Hartman <gregkh@suse.de> Wed, 22 Jun 2005 16:09:05 -0700
committer Greg Kroah-Hartman <gregkh@suse.de> Wed, 29 Jun 2005 22:48:04 -0700

drivers/base/bus.c | 27 +++++++++------------------
include/linux/device.h | 2 +-
2 files changed, 10 insertions(+), 19 deletions(-)

diff --git a/drivers/base/bus.c b/drivers/base/bus.c
--- a/drivers/base/bus.c
+++ b/drivers/base/bus.c
@@ -483,31 +483,22 @@ void bus_remove_driver(struct device_dri
/* Helper for bus_rescan_devices's iter */
static int bus_rescan_devices_helper(struct device *dev, void *data)
{
- int *count = data;
-
- if (!dev->driver && (device_attach(dev) > 0))
- (*count)++;
-
+ if (!dev->driver)
+ device_attach(dev);
return 0;
}

-
/**
- * bus_rescan_devices - rescan devices on the bus for possible drivers
- * @bus: the bus to scan.
+ * bus_rescan_devices - rescan devices on the bus for possible drivers
+ * @bus: the bus to scan.
*
- * This function will look for devices on the bus with no driver
- * attached and rescan it against existing drivers to see if it
- * matches any. Calls device_attach(). Returns the number of devices
- * that were sucessfully bound to a driver.
+ * This function will look for devices on the bus with no driver
+ * attached and rescan it against existing drivers to see if it matches
+ * any by calling device_attach() for the unbound devices.
*/
-int bus_rescan_devices(struct bus_type * bus)
+void bus_rescan_devices(struct bus_type * bus)
{
- int count = 0;
-
- bus_for_each_dev(bus, NULL, &count, bus_rescan_devices_helper);
-
- return count;
+ bus_for_each_dev(bus, NULL, NULL, bus_rescan_devices_helper);
}

diff --git a/include/linux/device.h b/include/linux/device.h
--- a/include/linux/device.h
+++ b/include/linux/device.h
@@ -69,7 +69,7 @@ struct bus_type {
extern int bus_register(struct bus_type * bus);
extern void bus_unregister(struct bus_type * bus);

-extern int bus_rescan_devices(struct bus_type * bus);
+extern void bus_rescan_devices(struct bus_type * bus);

extern struct bus_type * get_bus(struct bus_type * bus);
extern void put_bus(struct bus_type * bus);