Unlock the storage volume object after looking it up
Unlock the storage volume object after looking it up

Introduced by c930410.

https://bugzilla.redhat.com/show_bug.cgi?id=980676

crobinso/libvirt,jfehlig/libvirt,taget/libvirt,jfehlig/libvirt,datto/libvirt,fabianfreyer/libvirt,agx/libvirt,shugaoye/libvirt,libvirt/libvirt,shugaoye/libvirt,rlaager/libvirt,rlaager/libvirt,VenkatDatta/libvirt,zhlcindy/libvirt-1.1.4-maintain,zippy2/libvirt,zhlcindy/libvirt-1.1.4-maintain,datto/libvirt,libvirt/libvirt,jardasgit/libvirt,zhlcindy/libvirt-1.1.4-maintain,agx/libvirt,andreabolognani/libvirt,andreabolognani/libvirt,datto/libvirt,agx/libvirt,andreabolognani/libvirt,elmarco/libvirt,jfehlig/libvirt,VenkatDatta/libvirt,olafhering/libvirt,eskultety/libvirt,elmarco/libvirt,shugaoye/libvirt,andreabolognani/libvirt,zhlcindy/libvirt-1.1.4-maintain,olafhering/libvirt,eskultety/libvirt,eskultety/libvirt,taget/libvirt,cbosdo/libvirt,agx/libvirt,nertpinx/libvirt,cbosdo/libvirt,fabianfreyer/libvirt,zippy2/libvirt,cbosdo/libvirt,taget/libvirt,crobinso/libvirt,shugaoye/libvirt,agx/libvirt,zippy2/libvirt,eskultety/libvirt,rlaager/libvirt,nertpinx/libvirt,jardasgit/libvirt,taget/libvirt,cbosdo/libvirt,nertpinx/libvirt,fabianfreyer/libvirt,elmarco/libvirt,jardasgit/libvirt,VenkatDatta/libvirt,libvirt/libvirt,zippy2/libvirt,olafhering/libvirt,taget/libvirt,cbosdo/libvirt,eskultety/libvirt,nertpinx/libvirt,VenkatDatta/libvirt,crobinso/libvirt,andreabolognani/libvirt,crobinso/libvirt,libvirt/libvirt,rlaager/libvirt,VenkatDatta/libvirt,jfehlig/libvirt,zhlcindy/libvirt-1.1.4-maintain,elmarco/libvirt,jardasgit/libvirt,nertpinx/libvirt,elmarco/libvirt,datto/libvirt,olafhering/libvirt,rlaager/libvirt,shugaoye/libvirt,fabianfreyer/libvirt,fabianfreyer/libvirt,datto/libvirt,jardasgit/libvirt