[libvirt] [PATCH 01/19] libxl_migration: Resolve Coverity NULL_RETURNS

[John Ferlan]

Coverity noted that all callers to libxlDomainEventQueue() could ensure
the second parameter (event) was true before calling except this case.
As I look at the code and how events are used - it seems that prior to
generating an event for the dom == NULL condition, the resume/suspend
event should be queue'd after the virDomainSaveStatus() call which will
goto cleanup and queue the saved event anyway.

Signed-off-by: John Ferlan <jferlan at redhat.com>
---
 src/libxl/libxl_migration.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/src/libxl/libxl_migration.c b/src/libxl/libxl_migration.c
index dbb5a8f..53ae63a 100644
--- a/src/libxl/libxl_migration.c
+++ b/src/libxl/libxl_migration.c
@@ -512,6 +512,11 @@ libxlDomainMigrationFinish(virConnectPtr dconn,
     if (virDomainSaveStatus(driver->xmlopt, cfg->stateDir, vm) < 0)
         goto cleanup;
 
+    if (event) {
+        libxlDomainEventQueue(driver, event);
+        event = NULL;
+    }
+
     dom = virGetDomain(dconn, vm->def->name, vm->def->uuid);
 
     if (dom == NULL) {
@@ -519,7 +524,6 @@ libxlDomainMigrationFinish(virConnectPtr dconn,
         libxlDomainCleanup(driver, vm, VIR_DOMAIN_SHUTOFF_FAILED);
         event = virDomainEventLifecycleNewFromObj(vm, VIR_DOMAIN_EVENT_STOPPED,
                                          VIR_DOMAIN_EVENT_STOPPED_FAILED);
-        libxlDomainEventQueue(driver, event);
     }
 
  cleanup:
-- 
1.9.3