[PATCH] configfs: Include linux/err.h in linux/configfs.h

[linux-block.git] / include / linux / configfs.h

diff --git a/include/linux/configfs.h b/include/linux/configfs.h
index 3ae65b1bf90fd891b32538390c103f12632560fd..0a5491baf0bc5c02f8bde7a0204220f489d89a32 100644 (file)
--- a/include/linux/configfs.h
+++ b/include/linux/configfs.h
@@ -40,6 +40,7 @@
 #include <linux/list.h>
 #include <linux/kref.h>
 #include <linux/mutex.h>
+#include <linux/err.h>
 
 #include <asm/atomic.h>
 
@@ -148,7 +149,8 @@ struct configfs_attribute {
  * items.  If the item is a group, it may support mkdir(2).
  * Groups supply one of make_group() and make_item().  If the
  * group supports make_group(), one can create group children.  If it
- * supports make_item(), one can create config_item children.  If it has
+ * supports make_item(), one can create config_item children.  make_group()
+ * and make_item() return ERR_PTR() on errors.  If it has
  * default_groups on group->default_groups, it has automatically created
  * group children.  default_groups may coexist alongsize make_group() or
  * make_item(), but if the group wishes to have only default_groups