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d2e001f92e6e
2019 Sep 06
0
[PATCH] virtio_ring: fix unmap of indirect descriptors
.... document when does it trigger and what is the
effect of the fix. Thanks!
> ---
> drivers/virtio/virtio_ring.c | 10 +++++++---
> 1 file changed, 7 insertions(+), 3 deletions(-)
>
> diff --git a/drivers/virtio/virtio_ring.c b/drivers/virtio/virtio_ring.c
> index c8be1c4f5b55..d2e001f92e6e 100644
> --- a/drivers/virtio/virtio_ring.c
> +++ b/drivers/virtio/virtio_ring.c
> @@ -566,13 +566,17 @@ static inline int virtqueue_add_split(struct virtqueue *_vq,
>
> unmap_release:
> err_idx = i;
> - i = head;
> +
> + if (indirect)
> + i = 0;
> + else
>...