virtio: Initialize vq->data entries to NULL

[safe/jmp/linux-2.6] / drivers / virtio / virtio_ring.c

diff --git a/drivers/virtio/virtio_ring.c b/drivers/virtio/virtio_ring.c
index 782b729..0db906b 100644 (file)
--- a/drivers/virtio/virtio_ring.c
+++ b/drivers/virtio/virtio_ring.c
@@ -448,8 +448,11 @@ struct virtqueue *vring_new_virtqueue(unsigned int num,
        /* Put everything in free lists. */
        vq->num_free = num;
        vq->free_head = 0;
-       for (i = 0; i < num-1; i++)
+       for (i = 0; i < num-1; i++) {
                vq->vring.desc[i].next = i+1;
+               vq->data[i] = NULL;
+       }
+       vq->data[i] = NULL;
 
        return &vq->vq;
 }