vhost: copy_to_user -> __copy_to_user
We do access_ok checks at setup time, so we don't need to redo them on each access. Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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@ -1258,7 +1258,7 @@ static int __vhost_add_used_n(struct vhost_virtqueue *vq,
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start = vq->last_used_idx % vq->num;
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used = vq->used->ring + start;
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if (copy_to_user(used, heads, count * sizeof *used)) {
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if (__copy_to_user(used, heads, count * sizeof *used)) {
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vq_err(vq, "Failed to write used");
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return -EFAULT;
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}
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