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-rw-r--r--Documentation/userspace-api/media/dvb/dmx-munmap.rst14
1 files changed, 5 insertions, 9 deletions
diff --git a/Documentation/userspace-api/media/dvb/dmx-munmap.rst b/Documentation/userspace-api/media/dvb/dmx-munmap.rst
index 308a9593919c..66bbc11e5c40 100644
--- a/Documentation/userspace-api/media/dvb/dmx-munmap.rst
+++ b/Documentation/userspace-api/media/dvb/dmx-munmap.rst
@@ -1,4 +1,5 @@
.. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
+.. c:namespace:: DTV.dmx
.. _dmx-munmap:
@@ -13,7 +14,6 @@ dmx-munmap - Unmap device memory
.. warning:: This API is still experimental.
-
Synopsis
========
@@ -22,33 +22,29 @@ Synopsis
#include <unistd.h>
#include <sys/mman.h>
-
.. c:function:: int munmap( void *start, size_t length )
- :name: dmx-munmap
Arguments
=========
``start``
Address of the mapped buffer as returned by the
- :ref:`mmap() <dmx-mmap>` function.
+ :c:func:`mmap()` function.
``length``
Length of the mapped buffer. This must be the same value as given to
- :ref:`mmap() <dmx-mmap>`.
-
+ :c:func:`mmap()`.
Description
===========
-Unmaps a previously with the :ref:`mmap() <dmx-mmap>` function mapped
+Unmaps a previously with the :c:func:`mmap()` function mapped
buffer and frees it, if possible.
-
Return Value
============
-On success :ref:`munmap() <dmx-munmap>` returns 0, on failure -1 and the
+On success :c:func:`munmap()` returns 0, on failure -1 and the
``errno`` variable is set appropriately:
EINVAL