On 06/08/2015 19:13, Nicholas Krause wrote:
> diff --git a/arch/powerpc/kvm/mpic.c b/arch/powerpc/kvm/mpic.c
> index 6249cdc..5a18859 100644
> --- a/arch/powerpc/kvm/mpic.c
> +++ b/arch/powerpc/kvm/mpic.c
> @@ -1641,13 +1641,16 @@ static void mpic_destroy(struct kvm_device *dev)
> static int mpic_set_default_irq_routing(struct openpic *opp)
> {
> struct kvm_irq_routing_entry *routing;
> + int ret;
>
> /* Create a nop default map, so that dereferencing it still works */
> routing = kzalloc((sizeof(*routing)), GFP_KERNEL);
> if (!routing)
> return -ENOMEM;
>
> - kvm_set_irq_routing(opp->kvm, routing, 0, 0);
> + ret = kvm_set_irq_routing(opp->kvm, routing, 0, 0);
> + if (ret)
> + return ret;
>
> kfree(routing);
> return 0;
The patch leaks the "routing" variable if you hit the error path.
Paolo
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