qemu: Simplify the code
qemu: Simplify the code

"disk" is initialized to "dev->data.disk" in the beginning of the
function.

trainstack/libvirt,taget/libvirt,VenkatDatta/libvirt,bjzhang/libvirt,iam-TJ/libvirt,taget/libvirt,iam-TJ/libvirt,eskultety/libvirt,emaste/libvirt,cbosdo/libvirt,iam-TJ/libvirt,iam-TJ/libvirt,elmarco/libvirt,siboulet/libvirt-openvz,rlaager/libvirt,jardasgit/libvirt,jeckersb/libvirt,jeckersb/libvirt,siboulet/libvirt-openvz,fabianfreyer/libvirt,jardasgit/libvirt,jfehlig/libvirt,elmarco/libvirt,shugaoye/libvirt,agx/libvirt,iam-TJ/libvirt,zippy2/libvirt,libvirt/libvirt,agx/libvirt,libvirt/libvirt,emaste/libvirt,shugaoye/libvirt,andreabolognani/libvirt,zhlcindy/libvirt-1.1.4-maintain,datto/libvirt,cbosdo/libvirt,zippy2/libvirt,andreabolognani/libvirt,iam-TJ/libvirt,VenkatDatta/libvirt,siboulet/libvirt-openvz,zhlcindy/libvirt-1.1.4-maintain,trainstack/libvirt,siboulet/libvirt-openvz,fabianfreyer/libvirt,emaste/libvirt,cbosdo/libvirt,jardasgit/libvirt,olafhering/libvirt,agx/libvirt,bjzhang/libvirt,zhlcindy/libvirt-1.1.4-maintain,nertpinx/libvirt,shugaoye/libvirt,eskultety/libvirt,jeckersb/libvirt,crobinso/libvirt,andreabolognani/libvirt,taget/libvirt,emaste/libvirt,cbosdo/libvirt,rlaager/libvirt,eskultety/libvirt,jeckersb/libvirt,zippy2/libvirt,olafhering/libvirt,fabianfreyer/libvirt,crobinso/libvirt,shugaoye/libvirt,trainstack/libvirt,nertpinx/libvirt,crobinso/libvirt,elmarco/libvirt,agx/libvirt,eskultety/libvirt,jeckersb/libvirt,jfehlig/libvirt,agx/libvirt,fabianfreyer/libvirt,jeckersb/libvirt,eskultety/libvirt,andreabolognani/libvirt,emaste/libvirt,nertpinx/libvirt,VenkatDatta/libvirt,siboulet/libvirt-openvz,libvirt/libvirt,nertpinx/libvirt,bjzhang/libvirt,elmarco/libvirt,nertpinx/libvirt,rlaager/libvirt,VenkatDatta/libvirt,fabianfreyer/libvirt,datto/libvirt,taget/libvirt,emaste/libvirt,rlaager/libvirt,andreabolognani/libvirt,libvirt/libvirt,VenkatDatta/libvirt,jfehlig/libvirt,datto/libvirt,jfehlig/libvirt,jardasgit/libvirt,datto/libvirt,zhlcindy/libvirt-1.1.4-maintain,trainstack/libvirt,olafhering/libvirt,trainstack/libvirt,shugaoye/libvirt,jardasgit/libvirt,elmarco/libvirt,bjzhang/libvirt,zhlcindy/libvirt-1.1.4-maintain,trainstack/libvirt,rlaager/libvirt,cbosdo/libvirt,emaste/libvirt,olafhering/libvirt,trainstack/libvirt,bjzhang/libvirt,jeckersb/libvirt,zippy2/libvirt,taget/libvirt,datto/libvirt,crobinso/libvirt,iam-TJ/libvirt