[OpenTv] fix segmentation fault.
[OpenTv] fix segmentation fault.

tension9000/e2openplugin-CrossEPG,oe-alliance/e2openplugin-CrossEPG,tension9000/e2openplugin-CrossEPG,tension9000/e2openplugin-CrossEPG,tension9000/e2openplugin-CrossEPG,tension9000/e2openplugin-CrossEPG,oe-alliance/e2openplugin-CrossEPG,oe-alliance/e2openplugin-CrossEPG,oe-alliance/e2openplugin-CrossEPG