[libvirt] [PATCH 01/19] libxl_migration: Resolve Coverity NULL_RETURNS
Jim Fehlig
jfehlig at suse.com
Wed Aug 27 21:29:38 UTC 2014
John Ferlan wrote:
> 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);
> }
>
See my question in your first series about whether the dom == NULL check
is even needed. If not, I can send a patch to remove the check, in
which case this patch wouldn't be needed.
https://www.redhat.com/archives/libvir-list/2014-August/msg01399.html
Regards,
Jim
More information about the libvir-list
mailing list