storage_conf: plug a leak on OOM error path
storage_conf: plug a leak on OOM error path

* src/conf/storage_conf.c (virStoragePoolSourceListNewSource):
Free just-allocated "source" upon VIR_REALLOC_N failure.

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