commit 0ddebdb42e72a984d25793722a60b85c7c7d8f1f
Author: Peter Krempa <pkrempa@redhat.com>
Date:   Wed Dec 9 10:08:53 2020 +0100

    qemu: Fix logic bug in inactive snapshot deletion
    
    Commit 926563dc3a6 which refactored the function call deleting the
    snapshot's on disk state introduced a logic bug, which skips over the
    deletion of libvirt metadata after the disk state deletion is done.
    
    To fix it we must not return early.
    
    Resolves: https://gitlab.com/libvirt/libvirt/-/issues/109
    Signed-off-by: Peter Krempa <pkrempa@redhat.com>
    Reviewed-by: Erik Skultety <eskultet@redhat.com>

Index: libvirt-6.10.0/src/qemu/qemu_domain.c
===================================================================
--- libvirt-6.10.0.orig/src/qemu/qemu_domain.c
+++ libvirt-6.10.0/src/qemu/qemu_domain.c
@@ -6594,7 +6594,8 @@ qemuDomainSnapshotDiscard(virQEMUDriverP
             if (!def)
                 def = vm->def;
 
-            return qemuDomainSnapshotForEachQcow2(driver, def, snap, "-d", true);
+            if (qemuDomainSnapshotForEachQcow2(driver, def, snap, "-d", true) < 0)
+                return -1;
         } else {
             priv = vm->privateData;
             qemuDomainObjEnterMonitor(driver, vm);