[rtems-docs commit] c-user: Document rtems_extension_create()

[Sebastian Huber]

Module:    rtems-docs
Branch:    master
Commit:    a19be8b748da337b86700664fba82f7b2ff9fbcb
Changeset: http://git.rtems.org/rtems-docs/commit/?id=a19be8b748da337b86700664fba82f7b2ff9fbcb

Author:    Sebastian Huber <sebastian.huber at embedded-brains.de>
Date:      Fri Apr 17 10:03:46 2020 +0200

c-user: Document rtems_extension_create()

Close #3953.

---

 c-user/user_extensions.rst | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/c-user/user_extensions.rst b/c-user/user_extensions.rst
index c3bd1c6..89b86fd 100644
--- a/c-user/user_extensions.rst
+++ b/c-user/user_extensions.rst
@@ -466,6 +466,8 @@ DIRECTIVE STATUS CODES:
 
      * - ``RTEMS_SUCCESSFUL``
        - extension set created successfully
+     * - ``RTEMS_INVALID_ADDRESS``
+       - ``table`` or ``id`` are NULL
      * - ``RTEMS_INVALID_NAME``
        - invalid extension set name
      * - ``RTEMS_TOO_MANY``