Commit fb451966 authored by Greg Kroah-Hartman's avatar Greg Kroah-Hartman
Browse files

driver core: bus: clean up driver_find() 

Convert the driver_find() function to use bus_to_subsys() and not use
the back-pointer to the private structure.

Cc: "Rafael J. Wysocki" <rafael@kernel.org>
Link: https://lore.kernel.org/r/20230208111330.439504-16-gregkh@linuxfoundation.org


Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent adc18506

drivers/base/bus.c

+15 −8
Original line number Diff line number Diff line
@@ -1302,17 +1302,24 @@ EXPORT_SYMBOL_GPL(subsys_virtual_register); 
 */

struct device_driver *driver_find(const char *name, struct bus_type *bus)

{

	struct kobject *k = kset_find_obj(bus->p->drivers_kset, name);

	struct subsys_private *sp = bus_to_subsys(bus);

	struct kobject *k;

	struct driver_private *priv;



	if (k) {

	if (!sp)

		return NULL;



	k = kset_find_obj(sp->drivers_kset, name);

	subsys_put(sp);

	if (!k)

		return NULL;



	priv = to_driver(k);



	/* Drop reference added by kset_find_obj() */

	kobject_put(k);

		priv = to_driver(k);

	return priv->driver;

}

	return NULL;

}

EXPORT_SYMBOL_GPL(driver_find);



int __init buses_init(void)