diff options
Diffstat (limited to 'drivers/vhost/vhost.c')
| -rw-r--r-- | drivers/vhost/vhost.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/vhost/vhost.c b/drivers/vhost/vhost.c index 79b0b7cd2860..71604668e53f 100644 --- a/drivers/vhost/vhost.c +++ b/drivers/vhost/vhost.c @@ -2971,6 +2971,9 @@ int vhost_add_used_n(struct vhost_virtqueue *vq, struct vring_used_elem *heads, } r = __vhost_add_used_n(vq, heads, count); + if (r < 0) + return r; + /* Make sure buffer is written before we update index. */ smp_wmb(); if (vhost_put_used_idx(vq)) { |