net: hns3: Fix uninitialized return from function

Currently function hns3_reset_notify_uninit_enet is returning
the contents of the uninitialized variable ret.  Fix this by
removing ret (since it is no longer used) and replace it with
a return of the literal value 0.

Addresses-Coverity: ("Uninitialized scalar variable")
Fixes: 64749c9 ("net: hns3: remove redundant return value of hns3_uninit_all_ring()")
Signed-off-by: Colin Ian King <colin.king@canonical.com>

drivers/net/ethernet/hisilicon/hns3/hns3_enet.c

@@ -4664,7 +4664,6 @@ static int hns3_reset_notify_uninit_enet(struct hnae3_handle *handle)
 {
 	struct net_device *netdev = handle->kinfo.netdev;
 	struct hns3_nic_priv *priv = netdev_priv(netdev);
-	int ret;
 
 	if (!test_and_clear_bit(HNS3_NIC_STATE_INITED, &priv->state)) {
 		netdev_warn(netdev, "already uninitialized\n");
@@ -4688,7 +4687,7 @@ static int hns3_reset_notify_uninit_enet(struct hnae3_handle *handle)
 
 	hns3_put_ring_config(priv);
 
-	return ret;
+	return 0;
 }
 
 static int hns3_reset_notify(struct hnae3_handle *handle,