conf: plug memory leaks
conf: plug memory leaks

* src/conf/domain_conf.c (virDomainGraphicsDefParseXML)
(virDomainDeviceVirtioSerialAddressParseXML)
(virDomainDiskDefFree): Free various leaks.

siboulet/libvirt-openvz,taget/libvirt,bjzhang/libvirt,rmarwaha/libvirt1,rbu/libvirt,novel/fbsd-libvirt,rmarwaha/libvirt,danwent/libvirt-ovs,foomango/libvirt,emaste/libvirt,andreabolognani/libvirt,sshah-solarflare/Libvirt-PCI-passthrough-,leilihh/libvirt,fabianfreyer/libvirt,jeckersb/libvirt,warewolf/libvirt,jfehlig/libvirt,kantai/libvirt-vfork,jeckersb/libvirt,rlaager/libvirt,rlaager/libvirt,wiedi/libvirt,jardasgit/libvirt,shugaoye/libvirt,foomango/libvirt,emaste/libvirt,shugaoye/libvirt,novel/fbsd-libvirt,datto/libvirt,usc-isi/libvirt,crobinso/libvirt,novel/fbsd-libvirt,kantai/libvirt-vfork,jfehlig/libvirt,emaste/libvirt,rlaager/libvirt,novel/fbsd-libvirt,jeckersb/libvirt,jeckersb/libvirt,zhlcindy/libvirt-1.1.4-maintain,zhlcindy/libvirt-1.1.4-maintain,VenkatDatta/libvirt,dumbbell/libvirt,jfehlig/libvirt,datto/libvirt,crobinso/libvirt,zhlcindy/libvirt-1.1.4-maintain,leilihh/libvirt,eskultety/libvirt,danwent/libvirt-ovs,VenkatDatta/libvirt,warewolf/libvirt,rlaager/libvirt,warewolf/libvirt,usc-isi/libvirt,iam-TJ/libvirt,crobinso/libvirt,rmarwaha/libvirt,warewolf/libvirt,shugaoye/libvirt,trainstack/libvirt,zhlcindy/libvirt-1.1.4-maintain,cbosdo/libvirt,elmarco/libvirt,rbu/libvirt,nertpinx/libvirt,shugaoye/libvirt,jeckersb/libvirt,danwent/libvirt-ovs,taget/libvirt,olafhering/libvirt,jardasgit/libvirt,foomango/libvirt,agx/libvirt,andreabolognani/libvirt,emaste/libvirt,rmarwaha/libvirt1,jardasgit/libvirt,wiedi/libvirt,rbu/libvirt,sshah-solarflare/Libvirt-PCI-passthrough-,warewolf/libvirt,rmarwaha/libvirt1,zippy2/libvirt,fabianfreyer/libvirt,agx/libvirt,rmarwaha/libvirt1,libvirt/libvirt,olafhering/libvirt,trainstack/libvirt,foomango/libvirt,zippy2/libvirt,libvirt/libvirt,nertpinx/libvirt,trainstack/libvirt,rbu/libvirt,iam-TJ/libvirt,datto/libvirt,datto/libvirt,agx/libvirt,eskultety/libvirt,agx/libvirt,novel/fbsd-libvirt,foomango/libvirt,usc-isi/libvirt,andreabolognani/libvirt,nertpinx/libvirt,zippy2/libvirt,crobinso/libvirt,dumbbell/libvirt,jardasgit/libvirt,wiedi/libvirt,dumbbell/libvirt,libvirt/libvirt,VenkatDatta/libvirt,danwent/libvirt-ovs,emaste/libvirt,soulxu/libvirt-xuhj,eskultety/libvirt,rmarwaha/libvirt1,elmarco/libvirt,andreabolognani/libvirt,andreabolognani/libvirt,siboulet/libvirt-openvz,kantai/libvirt-vfork,libvirt/libvirt,jardasgit/libvirt,sshah-solarflare/Libvirt-PCI-passthrough-,elmarco/libvirt,rmarwaha/libvirt1,leilihh/libvirt,trainstack/libvirt,nertpinx/libvirt,zhlcindy/libvirt-1.1.4-maintain,olafhering/libvirt,iam-TJ/libvirt,olafhering/libvirt,leilihh/libvirt,eskultety/libvirt,dumbbell/libvirt,rlaager/libvirt,soulxu/libvirt-xuhj,sshah-solarflare/Libvirt-PCI-passthrough-,cbosdo/libvirt,emaste/libvirt,fabianfreyer/libvirt,trainstack/libvirt,wiedi/libvirt,taget/libvirt,bjzhang/libvirt,datto/libvirt,iam-TJ/libvirt,VenkatDatta/libvirt,bjzhang/libvirt,jfehlig/libvirt,jeckersb/libvirt,wiedi/libvirt,warewolf/libvirt,cbosdo/libvirt,cbosdo/libvirt,rmarwaha/libvirt,novel/fbsd-libvirt,taget/libvirt,kantai/libvirt-vfork,rbu/libvirt,fabianfreyer/libvirt,bjzhang/libvirt,warewolf/libvirt,cbosdo/libvirt,dumbbell/libvirt,wiedi/libvirt,novel/fbsd-libvirt,nertpinx/libvirt,sshah-solarflare/Libvirt-PCI-passthrough-,taget/libvirt,zippy2/libvirt,agx/libvirt,danwent/libvirt-ovs,leilihh/libvirt,rmarwaha/libvirt,novel/fbsd-libvirt,fabianfreyer/libvirt,elmarco/libvirt,iam-TJ/libvirt,trainstack/libvirt,siboulet/libvirt-openvz,soulxu/libvirt-xuhj,usc-isi/libvirt,novel/fbsd-libvirt,iam-TJ/libvirt,soulxu/libvirt-xuhj,soulxu/libvirt-xuhj,shugaoye/libvirt,kantai/libvirt-vfork,siboulet/libvirt-openvz,dumbbell/libvirt,siboulet/libvirt-openvz,wiedi/libvirt,rmarwaha/libvirt,trainstack/libvirt,VenkatDatta/libvirt,usc-isi/libvirt,leilihh/libvirt,jeckersb/libvirt,bjzhang/libvirt,iam-TJ/libvirt,rmarwaha/libvirt,elmarco/libvirt,eskultety/libvirt,emaste/libvirt