[media] DocBook: Add an error code session for LIRC interface

Acked-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
diff --git a/Documentation/DocBook/media/v4l/lirc_device_interface.xml b/Documentation/DocBook/media/v4l/lirc_device_interface.xml
index 0e0453f..a060f3f 100644
--- a/Documentation/DocBook/media/v4l/lirc_device_interface.xml
+++ b/Documentation/DocBook/media/v4l/lirc_device_interface.xml
@@ -248,4 +248,8 @@
 </variablelist>
 
 </section>
+
+<section id="lirc_dev_errors">
+    &return-value;
+</section>
 </section>