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path: root/drivers/vhost/vdpa.c
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Diffstat (limited to 'drivers/vhost/vdpa.c')
-rw-r--r--drivers/vhost/vdpa.c6
1 files changed, 5 insertions, 1 deletions
diff --git a/drivers/vhost/vdpa.c b/drivers/vhost/vdpa.c
index e0a27e336293..bfa4c6ef554e 100644
--- a/drivers/vhost/vdpa.c
+++ b/drivers/vhost/vdpa.c
@@ -745,9 +745,11 @@ static int vhost_vdpa_process_iotlb_msg(struct vhost_dev *dev,
const struct vdpa_config_ops *ops = vdpa->config;
int r = 0;
+ mutex_lock(&dev->mutex);
+
r = vhost_dev_check_owner(dev);
if (r)
- return r;
+ goto unlock;
switch (msg->type) {
case VHOST_IOTLB_UPDATE:
@@ -768,6 +770,8 @@ static int vhost_vdpa_process_iotlb_msg(struct vhost_dev *dev,
r = -EINVAL;
break;
}
+unlock:
+ mutex_unlock(&dev->mutex);
return r;
}