diff mbox

[v3,01/10] virtio: add missing vdev->broken check

Message ID 1479832306-26440-2-git-send-email-stefanha@redhat.com (mailing list archive)
State New, archived
Headers show

Commit Message

Stefan Hajnoczi Nov. 22, 2016, 4:31 p.m. UTC 
virtio_queue_notify_vq() checks vdev->broken before invoking the
handler, virtio_queue_notify_aio_vq() should too.

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
---
 hw/virtio/virtio.c | 4 ++++
 1 file changed, 4 insertions(+)
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Patch

diff --git a/hw/virtio/virtio.c b/hw/virtio/virtio.c
index 1af2de2..6d8c8af 100644
--- a/hw/virtio/virtio.c
+++ b/hw/virtio/virtio.c
@@ -1239,6 +1239,10 @@  static void virtio_queue_notify_aio_vq(VirtQueue *vq)
     if (vq->vring.desc && vq->handle_aio_output) {
         VirtIODevice *vdev = vq->vdev;
 
+        if (unlikely(vq->vdev->broken)) {
+            return;
+        }
+
         trace_virtio_queue_notify(vdev, vq - vdev->vq, vq);
         vq->handle_aio_output(vdev, vq);
     }