Re: [libvirt] [PATCH 4/4] qemu: snapshot: Fix return value of external checkpoint with no disks

When doing an external checkpoint of a VM with no disk selected we'd return failure but not set error code. This was a result of ret not being set to 0 during walking of the disk array. Rework early failure checking to avoid the problem. Fixes the following symptom (or without --diskspec for diskless VMs) $ virsh snapshot-create-as snapshot-test --memspec /tmp/asdf --diskspec hda,snapshot=no error: An error occurred, but the cause is unknown ---