summaryrefslogtreecommitdiff
path: root/drivers/vhost/vhost.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/vhost/vhost.c')
-rw-r--r--drivers/vhost/vhost.c15
1 files changed, 11 insertions, 4 deletions
diff --git a/drivers/vhost/vhost.c b/drivers/vhost/vhost.c
index ad2146a9a..236553e81 100644
--- a/drivers/vhost/vhost.c
+++ b/drivers/vhost/vhost.c
@@ -1156,6 +1156,8 @@ int vhost_init_used(struct vhost_virtqueue *vq)
{
__virtio16 last_used_idx;
int r;
+ bool is_le = vq->is_le;
+
if (!vq->private_data) {
vq->is_le = virtio_legacy_is_little_endian();
return 0;
@@ -1165,15 +1167,20 @@ int vhost_init_used(struct vhost_virtqueue *vq)
r = vhost_update_used_flags(vq);
if (r)
- return r;
+ goto err;
vq->signalled_used_valid = false;
- if (!access_ok(VERIFY_READ, &vq->used->idx, sizeof vq->used->idx))
- return -EFAULT;
+ if (!access_ok(VERIFY_READ, &vq->used->idx, sizeof vq->used->idx)) {
+ r = -EFAULT;
+ goto err;
+ }
r = __get_user(last_used_idx, &vq->used->idx);
if (r)
- return r;
+ goto err;
vq->last_used_idx = vhost16_to_cpu(vq, last_used_idx);
return 0;
+err:
+ vq->is_le = is_le;
+ return r;
}
EXPORT_SYMBOL_GPL(vhost_init_used);