[libvirt] [PATCH] Fix virsh snapshot-list error reporting
Noticed that the expected "not supported" error is dropped when
invoking 'virsh snapshot-list dom' on a Xen installation running
the libxl driver
virsh snapshot-list test
error: Invalid snapshot: virDomainSnapshotFree
The error is overwritten by a call to virDomainSnapshotFree
in cleanup code within cmdSnapshotList. Prevent overwritting
the real error by not calling virDomainSnapshotFree with a NULL
virDomainSnapshotPtr.
---
This is one possible fix for the bug. The other would be to
silently return in virDomainSnapshotFree on a NULL
virDomainSnapshotPtr.
tools/virsh-snapshot.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/tools/virsh-snapshot.c b/tools/virsh-snapshot.c
index cfe8ee9..db9715b 100644
--- a/tools/virsh-snapshot.c
+++ b/tools/virsh-snapshot.c
@@ -1678,7 +1678,8 @@ cleanup:
vshSnapshotListFree(snaplist);
VIR_FREE(parent_snap);
VIR_FREE(state);
- virDomainSnapshotFree(start);
+ if (start)
+ virDomainSnapshotFree(start);
xmlXPathFreeContext(ctxt);
xmlFreeDoc(xml);
VIR_FREE(doc);
--
1.8.1.4