dvbinfo: handle errors
dvbinfo: handle errors

paraeco/libdvbpsi,vlc-mirror/libdvbpsi,avble/libdvbpsi,UIKit0/libdvbpsi,mwgoldsmith/dvbpsi,hiroshiyui/libdvbpsi,avble/libdvbpsi,mwgoldsmith/dvbpsi,vlc-mirror/libdvbpsi,UIKit0/libdvbpsi,krieger-od/libdvbpsi,Boxee/libdvbpsi,hiroshiyui/libdvbpsi,krieger-od/libdvbpsi,krieger-od/libdvbpsi,UIKit0/libdvbpsi,avble/libdvbpsi,paraeco/libdvbpsi,Boxee/libdvbpsi,mwgoldsmith/dvbpsi,garbear/libdvbpsi,paraeco/libdvbpsi,hiroshiyui/libdvbpsi,mkrufky/libdvbpsi,Boxee/libdvbpsi,mkrufky/libdvbpsi,mkrufky/libdvbpsi,garbear/libdvbpsi,paraeco/libdvbpsi,garbear/libdvbpsi,mwgoldsmith/dvbpsi,vlc-mirror/libdvbpsi