kvm: update_memslots: clean flags for invalid memslots

Indeed, any invalid memslots should be new->npages = 0,
new->base_gfn = 0 and new->flags = 0 at the same time.

Signed-off-by: Tiejun Chen <tiejun.chen@intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c
index 246cf29..a8490f0 100644 (file)
--- a/virt/kvm/kvm_main.c
+++ b/virt/kvm/kvm_main.c
@@ -675,6 +675,7 @@ static void update_memslots(struct kvm_memslots *slots,
        if (!new->npages) {
                WARN_ON(!mslots[i].npages);
                new->base_gfn = 0;
+               new->flags = 0;
                if (mslots[i].npages)
                        slots->used_slots--;
        } else {