driver core: device_rename's new_name can be const

The new_name argument to device_rename() can be
const as kobject_rename's new_name argument is.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

drivers/base/core.c

@@ -1599,7 +1599,7 @@ EXPORT_SYMBOL_GPL(device_destroy);
  * on the same device to ensure that new_name is valid and
  * won't conflict with other devices.
  */
-int device_rename(struct device *dev, char *new_name)
+int device_rename(struct device *dev, const char *new_name)
 {
 	char *old_class_name = NULL;
 	char *new_class_name = NULL;

include/linux/device.h

@@ -552,7 +552,7 @@ extern int device_for_each_child(struct device *dev, void *data,
 		     int (*fn)(struct device *dev, void *data));
 extern struct device *device_find_child(struct device *dev, void *data,
 				int (*match)(struct device *dev, void *data));
-extern int device_rename(struct device *dev, char *new_name);
+extern int device_rename(struct device *dev, const char *new_name);
 extern int device_move(struct device *dev, struct device *new_parent,
 		       enum dpm_order dpm_order);
 extern const char *device_get_devnode(struct device *dev,