Re: [PATCH v4 2/5] vfio/pci: Free leaked timer in vfio_realize error path

[Cédric Le Goater]

On 6/29/23 10:40, Zhenzhong Duan wrote:
> When vfio_realize fails, the mmap_timer used for INTx optimization
> isn't freed. As this timer isn't activated yet, the potential impact
> is just a piece of leaked memory.
>
> Fixes: ea486926b07d ("vfio-pci: Update slow path INTx algorithm timer related")
> Signed-off-by: Zhenzhong Duan <zhenzhong.duan@intel.com>

Reviewed-by: Cédric Le Goater <clg@redhat.com>

Thanks,

C.


> ---
>   hw/vfio/pci.c | 3 +++
>   1 file changed, 3 insertions(+)
>
> diff --git a/hw/vfio/pci.c b/hw/vfio/pci.c
> index 48df517f79ee..ab6645ba60af 100644
> --- a/hw/vfio/pci.c
> +++ b/hw/vfio/pci.c
> @@ -3224,6 +3224,9 @@ out_deregister:
>       if (vdev->irqchip_change_notifier.notify) {
>           kvm_irqchip_remove_change_notifier(&vdev->irqchip_change_notifier);
>       }
> +    if (vdev->intx.mmap_timer) {
> +        timer_free(vdev->intx.mmap_timer);
> +    }
>   out_teardown:
>       vfio_teardown_msi(vdev);
>       vfio_bars_exit(vdev);