diff --git a/[refs] b/[refs]
index ae5f447f31fd..f4991c90fafd 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 51ff9ef13366b3752a8ab6229c466fd1bd671d3a
+refs/heads/master: f1158af2b2e064532470516943511863a873c5e5
diff --git a/trunk/Documentation/DocBook/v4l/vidioc-query-dv-preset.xml b/trunk/Documentation/DocBook/v4l/vidioc-query-dv-preset.xml
index 87e4f0f6151c..402229ee06f6 100644
--- a/trunk/Documentation/DocBook/v4l/vidioc-query-dv-preset.xml
+++ b/trunk/Documentation/DocBook/v4l/vidioc-query-dv-preset.xml
@@ -53,8 +53,10 @@ input</refpurpose>
 automatically, similar to sensing the video standard. To do so, applications
 call <constant> VIDIOC_QUERY_DV_PRESET</constant> with a pointer to a
 &v4l2-dv-preset; type. Once the hardware detects a preset, that preset is
-returned in the preset field of &v4l2-dv-preset;. When detection is not
-possible or fails, the value V4L2_DV_INVALID is returned.</para>
+returned in the preset field of &v4l2-dv-preset;. If the preset could not be
+detected because there was no signal, or the signal was unreliable, or the
+signal did not map to a supported preset, then the value V4L2_DV_INVALID is
+returned.</para>
   </refsect1>
 
   <refsect1>