[media] DocBook/demux.xml: Remove generic errors

Remove generic errors from ioctl() descriptions. For other ioctl's,
there's no generic section. So, just keep whatever is there.
Acked-by: NHans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

Documentation/DocBook/media/dvb/demux.xml

@@ -552,13 +552,6 @@ typedef enum {
 &return-value-dvb;
 <informaltable><tgroup cols="2"><tbody><row><entry
  align="char">
-<para>EBADF</para>
-</entry><entry
- align="char">
-<para>fd is not a valid file descriptor.</para>
-</entry>
- </row><row><entry
- align="char">
 <para>EINVAL</para>
 </entry><entry
  align="char">
@@ -615,14 +608,6 @@ typedef enum {
 </entry>
  </row></tbody></tgroup></informaltable>
 &return-value-dvb;
-<informaltable><tgroup cols="2"><tbody><row><entry
- align="char">
-<para>EBADF</para>
-</entry><entry
- align="char">
-<para>fd is not a valid file descriptor.</para>
-</entry>
- </row></tbody></tgroup></informaltable>
 </section>
 
 <section id="DMX_SET_FILTER">
@@ -677,21 +662,6 @@ typedef enum {
 </entry>
  </row></tbody></tgroup></informaltable>
 &return-value-dvb;
-<informaltable><tgroup cols="2"><tbody><row><entry
- align="char">
-<para>EBADF</para>
-</entry><entry
- align="char">
-<para>fd is not a valid file descriptor.</para>
-</entry>
- </row><row><entry
- align="char">
-<para>EINVAL</para>
-</entry><entry
- align="char">
-<para>Invalid argument.</para>
-</entry>
- </row></tbody></tgroup></informaltable>
 </section>
 
 <section id="DMX_SET_PES_FILTER">
@@ -751,20 +721,6 @@ typedef enum {
 &return-value-dvb;
 <informaltable><tgroup cols="2"><tbody><row><entry
  align="char">
-<para>EBADF</para>
-</entry><entry
- align="char">
-<para>fd is not a valid file descriptor.</para>
-</entry>
- </row><row><entry
- align="char">
-<para>EINVAL</para>
-</entry><entry
- align="char">
-<para>Invalid argument.</para>
-</entry>
- </row><row><entry
- align="char">
 <para>EBUSY</para>
 </entry><entry
  align="char">
@@ -820,22 +776,6 @@ typedef enum {
 </entry>
  </row></tbody></tgroup></informaltable>
 &return-value-dvb;
-<informaltable><tgroup cols="2"><tbody><row><entry
- align="char">
-<para>EBADF</para>
-</entry><entry
- align="char">
-<para>fd is not a valid file descriptor.</para>
-</entry>
- </row><row><entry
- align="char">
-<para>ENOMEM</para>
-</entry><entry
- align="char">
-<para>The driver was not able to allocate a buffer of the
- requested size.</para>
-</entry>
- </row></tbody></tgroup></informaltable>
 </section>
 
 <section id="DMX_GET_EVENT">
@@ -894,20 +834,6 @@ typedef enum {
 &return-value-dvb;
 <informaltable><tgroup cols="2"><tbody><row><entry
  align="char">
-<para>EBADF</para>
-</entry><entry
- align="char">
-<para>fd is not a valid file descriptor.</para>
-</entry>
- </row><row><entry
- align="char">
-<para>EFAULT</para>
-</entry><entry
- align="char">
-<para>ev points to an invalid address.</para>
-</entry>
- </row><row><entry
- align="char">
 <para>EWOULDBLOCK</para>
 </entry><entry
  align="char">
@@ -967,20 +893,6 @@ typedef enum {
 &return-value-dvb;
 <informaltable><tgroup cols="2"><tbody><row><entry
  align="char">
-<para>EBADF</para>
-</entry><entry
- align="char">
-<para>fd is not a valid file descriptor.</para>
-</entry>
- </row><row><entry
- align="char">
-<para>EFAULT</para>
-</entry><entry
- align="char">
-<para>stc points to an invalid address.</para>
-</entry>
- </row><row><entry
- align="char">
 <para>EINVAL</para>
 </entry><entry
  align="char">

Documentation/DocBook/media/v4l/gen-errors.xml

@@ -48,6 +48,11 @@
 	       that this request would overcommit the usb bandwidth reserved
 	       for periodic transfers (up to 80% of the USB bandwidth).</entry>
       </row>
+      <row>
+	<entry>EWOULDBLOCK</entry>
+	<entry>Operation would block. Used when the ioctl would need to wait
+	       for an event, but the device was opened in non-blocking mode.</entry>
+      </row>
     </tbody>
   </tgroup>
 </table>