[libvirt] [PATCH] Fix possible infinite loop in remote driver

[Daniel P. Berrange]

On Tue, Apr 12, 2011 at 04:58:48PM +0200, Michal Privoznik wrote:
> When we take out completed calls from queue we might end up
> in circular pointer. We don't want pointer to previous item
> point to element taken out.
> ---
>  src/remote/remote_driver.c |    3 ++-
>  1 files changed, 2 insertions(+), 1 deletions(-)
> 
> diff --git a/src/remote/remote_driver.c b/src/remote/remote_driver.c
> index 9310ddf..ec10010 100644
> --- a/src/remote/remote_driver.c
> +++ b/src/remote/remote_driver.c
> @@ -10672,8 +10672,9 @@ remoteIOEventLoop(virConnectPtr conn,
>                   */
>                  VIR_DEBUG("Waking up sleep %d %p %p", tmp->proc_nr, tmp, priv->waitDispatch);
>                  virCondSignal(&tmp->cond);
> +            } else {
> +                prev = tmp;
>              }
> -            prev = tmp;
>              tmp = tmp->next;
>          }

ACK

The diff context doesn't really show enough, but this is correct fix
for the logic flaw

Daniel
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