[PATCH] driver core: add bus_find_device & driver_find_device functions

Add bus_find_device() and driver_find_device() which allow searching for a
device in the bus's resp. the driver's klist and obtain a reference on it.

Signed-off-by: Cornelia Huck <cohuck@de.ibm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

1 files changed, 5 insertions, 0 deletions

diff --git a/include/linux/device.h b/include/linux/device.h
index 7b781a72b293..07222c531d37 100644
--- a/include/linux/device.h
+++ b/include/linux/device.h
@@ -80,6 +80,8 @@ extern struct bus_type * find_bus(char * name);
 
 int bus_for_each_dev(struct bus_type * bus, struct device * start, void * data,
                      int (*fn)(struct device *, void *));
+struct device * bus_find_device(struct bus_type *bus, struct device *start,
+                                void *data, int (*match)(struct device *, void *));
 
 int bus_for_each_drv(struct bus_type * bus, struct device_driver * start, 
                      void * data, int (*fn)(struct device_driver *, void *));
@@ -142,6 +144,9 @@ extern void driver_remove_file(struct device_driver *, struct driver_attribute *
 
 extern int driver_for_each_device(struct device_driver * drv, struct device * start,
                                   void * data, int (*fn)(struct device *, void *));
+struct device * driver_find_device(struct device_driver *drv,
+                                   struct device *start, void *data,
+                                   int (*match)(struct device *, void *));
 
 
 /*