kernel/resource.c: fix new kernel-doc warning

Fix kernel-doc warning for new function:

Warning(linux-2.6.27-rc5-git2//kernel/resource.c:448): No description found for parameter 'root'

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/kernel/resource.c b/kernel/resource.c
index cf0a178..03d796c 100644
--- a/kernel/resource.c
+++ b/kernel/resource.c
@@ -438,7 +438,7 @@
 
 /**
  * insert_resource_expand_to_fit - Insert a resource into the resource tree
- * @parent: parent of the new resource
+ * @root: root resource descriptor
  * @new: new resource to insert
  *
  * Insert a resource into the resource tree, possibly expanding it in order