get_virtual_functions_linux: would mistakenly always return zero
get_virtual_functions_linux: would mistakenly always return zero

* src/node_device/node_device_linux_sysfs.c(get_virtual_functions_linux):
Return "ret", rather than always returning 0.

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