sys/xvimage/xvimagesink.c: Check that the xvimage we are creating has a correct size         before returning it. (#3...

Original commit message from CVS:
2006-03-05  Julien MOUTTE  <julien@moutte.net>

* sys/xvimage/xvimagesink.c: (gst_xvimagesink_xvimage_new),
(gst_xvimagesink_show_frame), (gst_xvimagesink_buffer_alloc):
Check that the xvimage we are creating has a correct size         before returning it. (#314897)