[libvirt] [PATCH RFC 19/40] conf: Don't reuse variable for different object in virDomainCheckpointRedefinePrep

[Peter Krempa]

The 'other' variable was used to store the parent of the redefined
checkpoint and then the existing version of the currently redefined
checkpoint. Make it less confusing by adding a 'parent' variable for the
first case.

Signed-off-by: Peter Krempa <pkrempa at redhat.com>
---
 src/conf/checkpoint_conf.c | 14 ++++++++------
 1 file changed, 8 insertions(+), 6 deletions(-)

diff --git a/src/conf/checkpoint_conf.c b/src/conf/checkpoint_conf.c
index b254dce7fd..ea2e77a50a 100644
--- a/src/conf/checkpoint_conf.c
+++ b/src/conf/checkpoint_conf.c
@@ -540,6 +540,7 @@ virDomainCheckpointRedefinePrep(virDomainObjPtr vm,
 {
     virDomainCheckpointDefPtr def = *defptr;
     char uuidstr[VIR_UUID_STRING_BUFLEN];
+    virDomainMomentObjPtr parent = NULL;
     virDomainMomentObjPtr other = NULL;
     virDomainCheckpointDefPtr otherdef = NULL;

@@ -558,12 +559,13 @@ virDomainCheckpointRedefinePrep(virDomainObjPtr vm,
     if (virDomainCheckpointAlignDisks(def) < 0)
         return -1;

-    if (def->parent.parent_name)
-        other = virDomainCheckpointFindByName(vm->checkpoints,
-                                              def->parent.parent_name);
-    if (other == virDomainCheckpointGetCurrent(vm->checkpoints)) {
-        *update_current = true;
-        virDomainCheckpointSetCurrent(vm->checkpoints, NULL);
+    if (def->parent.parent_name &&
+         (parent = virDomainCheckpointFindByName(vm->checkpoints,
+                                                 def->parent.parent_name))) {
+        if (parent == virDomainCheckpointGetCurrent(vm->checkpoints)) {
+            *update_current = true;
+            virDomainCheckpointSetCurrent(vm->checkpoints, NULL);
+        }
     }

     other = virDomainCheckpointFindByName(vm->checkpoints, def->parent.name);
-- 
2.21.0