qemu: Fix memory leak in qemuDomainBlockJobSetSpeed()
qemu: Fix memory leak in qemuDomainBlockJobSetSpeed()

fix 'device' leak in qemuDomainBlockJobSetSpeed

Signed-off-by: Jie Wang <wangjie88.huawei.com>
Signed-off-by: Michal Privoznik <83d82aaba2eed257f4814b0c239c260c4caaadf0@redhat.com>

crobinso/libvirt,jfehlig/libvirt,zippy2/libvirt,nertpinx/libvirt,libvirt/libvirt,andreabolognani/libvirt,eskultety/libvirt,jfehlig/libvirt,jardasgit/libvirt,jardasgit/libvirt,olafhering/libvirt,andreabolognani/libvirt,libvirt/libvirt,fabianfreyer/libvirt,nertpinx/libvirt,crobinso/libvirt,fabianfreyer/libvirt,fabianfreyer/libvirt,jfehlig/libvirt,eskultety/libvirt,libvirt/libvirt,jardasgit/libvirt,jfehlig/libvirt,nertpinx/libvirt,crobinso/libvirt,nertpinx/libvirt,eskultety/libvirt,jardasgit/libvirt,andreabolognani/libvirt,libvirt/libvirt,zippy2/libvirt,zippy2/libvirt,andreabolognani/libvirt,fabianfreyer/libvirt,nertpinx/libvirt,olafhering/libvirt,jardasgit/libvirt,eskultety/libvirt,andreabolognani/libvirt,eskultety/libvirt,olafhering/libvirt,crobinso/libvirt,fabianfreyer/libvirt,zippy2/libvirt,olafhering/libvirt