virtio: fix race in enable_cb

[sfrench/cifs-2.6.git] / drivers / virtio / virtio_ring.c

diff --git a/drivers/virtio/virtio_ring.c b/drivers/virtio/virtio_ring.c
index 3a28c1382131d04940035448d24aada5244e7589..aa714028641e630b068f683fc67e6707d6c6a853 100644 (file)
--- a/drivers/virtio/virtio_ring.c
+++ b/drivers/virtio/virtio_ring.c
@@ -232,7 +232,6 @@ static bool vring_enable_cb(struct virtqueue *_vq)
        vq->vring.avail->flags &= ~VRING_AVAIL_F_NO_INTERRUPT;
        mb();
        if (unlikely(more_used(vq))) {
-               vq->vring.avail->flags |= VRING_AVAIL_F_NO_INTERRUPT;
                END_USE(vq);
                return false;
        }