Fix to Close fd after done reading it.
Fix to Close fd after done reading it.

Change-Id: I6cf42b8910b7adef809e71f0ee51584170dff6cc
Related-Bug: 1420254

eonpatapon/contrail-controller,sajuptpm/contrail-controller,codilime/contrail-controller,nischalsheth/contrail-controller,rombie/contrail-controller,numansiddique/contrail-controller,numansiddique/contrail-controller,rombie/contrail-controller,DreamLab/contrail-controller,hthompson6/contrail-controller,codilime/contrail-controller,sajuptpm/contrail-controller,eonpatapon/contrail-controller,DreamLab/contrail-controller,sajuptpm/contrail-controller,hthompson6/contrail-controller,sajuptpm/contrail-controller,codilime/contrail-controller,tcpcloud/contrail-controller,vpramo/contrail-controller,vmahuli/contrail-controller,vpramo/contrail-controller,eonpatapon/contrail-controller,vmahuli/contrail-controller,eonpatapon/contrail-controller,vmahuli/contrail-controller,tcpcloud/contrail-controller,vpramo/contrail-controller,nischalsheth/contrail-controller,DreamLab/contrail-controller,vmahuli/contrail-controller,rombie/contrail-controller,hthompson6/contrail-controller,nischalsheth/contrail-controller,facetothefate/contrail-controller,numansiddique/contrail-controller,nischalsheth/contrail-controller,tcpcloud/contrail-controller,codilime/contrail-controller,nischalsheth/contrail-controller,tcpcloud/contrail-controller,nischalsheth/contrail-controller,reiaaoyama/contrail-controller,reiaaoyama/contrail-controller,facetothefate/contrail-controller,vmahuli/contrail-controller,reiaaoyama/contrail-controller,rombie/contrail-controller,reiaaoyama/contrail-controller,nischalsheth/contrail-controller,sajuptpm/contrail-controller,rombie/contrail-controller,codilime/contrail-controller,numansiddique/contrail-controller,tcpcloud/contrail-controller,hthompson6/contrail-controller,eonpatapon/contrail-controller,vpramo/contrail-controller,hthompson6/contrail-controller,rombie/contrail-controller,DreamLab/contrail-controller,tcpcloud/contrail-controller,nischalsheth/contrail-controller,numansiddique/contrail-controller,vpramo/contrail-controller,facetothefate/contrail-controller,eonpatapon/contrail-controller,DreamLab/contrail-controller,sajuptpm/contrail-controller,facetothefate/contrail-controller,eonpatapon/contrail-controller,rombie/contrail-controller,codilime/contrail-controller,facetothefate/contrail-controller,reiaaoyama/contrail-controller