[libvirt] [PATCH 2/2] Fix reference handling leak on qemuMonitor
Eric Blake
eblake at redhat.com
Thu Jun 10 14:39:07 UTC 2010
On 06/10/2010 08:17 AM, Daniel P. Berrange wrote:
> The current code pattern requires that callers of qemuMonitorClose
> check for the return value == 0, and if so, set priv->mon = NULL
> and release the reference held on the associated virDomainObjPtr
>
> The change d84bb6d6a3bd2fdd530184cc9743249ebddbee71 violated that
> requirement, meaning that priv->mon never gets set to NULL, and
> a reference count is leaked on virDomainObjPtr.
>
> This design was a bad one, so remove the need to check the return
> valueof qemuMonitorClose(). Instead allow registration of a
> callback that's invoked just when the last reference on qemuMonitorPtr
> is released.
>
> Finally there was a potential reference leak in qemuConnectMonitor
> in the failure path.
Definitely worth cleaning up.
ACK.
--
Eric Blake eblake at redhat.com +1-801-349-2682
Libvirt virtualization library http://libvirt.org
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