[libvirt] [PATCH] virsh: plug memory leaks on failure path

[Alex Jia]

Leaks are introduced in commit 1cf0e3d and fe383bb.

* tools/virsh.c (cmdSnapshotList): fix memory leaks.

* How to reproduce?

% virsh snapshot-list foo --parent --roots
error: --parent and --roots are mutually exclusive

error: Failed to disconnect from the hypervisor, 1 leaked reference(s)

% virsh snapshot-list foo --parent --tree
error: --parent and --tree are mutually exclusive

error: Failed to disconnect from the hypervisor, 1 leaked reference(s)

% virsh snapshot-list foo --roots --tree
error: --roots and --tree are mutually exclusive

error: Failed to disconnect from the hypervisor, 1 leaked reference(s)

......

Signed-off-by: Alex Jia <ajia at redhat.com>
---
 tools/virsh.c |    5 +++++
 1 files changed, 5 insertions(+), 0 deletions(-)

diff --git a/tools/virsh.c b/tools/virsh.c
index 5009b6b..f5c3b60 100644
--- a/tools/virsh.c
+++ b/tools/virsh.c
@@ -16357,11 +16357,13 @@ cmdSnapshotList(vshControl *ctl, const vshCmd *cmd)
         if (vshCommandOptBool(cmd, "roots")) {
             vshError(ctl, "%s",
                      _("--parent and --roots are mutually exclusive"));
+            virDomainFree(dom);
             return false;
         }
         if (tree) {
             vshError(ctl, "%s",
                      _("--parent and --tree are mutually exclusive"));
+            virDomainFree(dom);
             return false;
         }
         parent_filter = 1;
@@ -16369,11 +16371,13 @@ cmdSnapshotList(vshControl *ctl, const vshCmd *cmd)
         if (tree) {
             vshError(ctl, "%s",
                      _("--roots and --tree are mutually exclusive"));
+            virDomainFree(dom);
             return false;
         }
         if (from) {
             vshError(ctl, "%s",
                      _("--roots and --from are mutually exclusive"));
+            virDomainFree(dom);
         }
         flags |= VIR_DOMAIN_SNAPSHOT_LIST_ROOTS;
     }
@@ -16381,6 +16385,7 @@ cmdSnapshotList(vshControl *ctl, const vshCmd *cmd)
         if (tree) {
             vshError(ctl, "%s",
                      _("--leaves and --tree are mutually exclusive"));
+            virDomainFree(dom);
             return false;
         }
         flags |= VIR_DOMAIN_SNAPSHOT_LIST_LEAVES;
-- 
1.7.1