If virtqueue_get_buf() returned with a NULL pointer avoid a possibly endless loop by checking for a broken virtqueue. Signed-off-by: Heinz Graalfs <graalfs@xxxxxxxxxxxxxxxxxx> --- drivers/scsi/virtio_scsi.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/scsi/virtio_scsi.c b/drivers/scsi/virtio_scsi.c index 74b88ef..aa25aab 100644 --- a/drivers/scsi/virtio_scsi.c +++ b/drivers/scsi/virtio_scsi.c @@ -224,6 +224,9 @@ static void virtscsi_vq_done(struct virtio_scsi *vscsi, virtqueue_disable_cb(vq); while ((buf = virtqueue_get_buf(vq, &len)) != NULL) fn(vscsi, buf); + + if (unlikely(virtqueue_is_broken(vq))) + break; } while (!virtqueue_enable_cb(vq)); spin_unlock_irqrestore(&virtscsi_vq->vq_lock, flags); } -- 1.8.3.1 _______________________________________________ Virtualization mailing list Virtualization@xxxxxxxxxxxxxxxxxxxxxxxxxx https://lists.linuxfoundation.org/mailman/listinfo/virtualization
