From: Dan Carpenter <dan.carpenter@oracle.com>
Date: Thu, 20 Sep 2018 13:01:59 +0300
Subject: vhost_net: add a missing error return
Patch-mainline: v4.20-rc1
Git-commit: 8a1aff144d37af492034a9a11a8c6ad3b687a441
References: bsc#1109837

We accidentally left out this error return so it leads to some use after
free bugs later on.

Fixes: 0a0be13b8fe2 ("vhost_net: batch submitting XDP buffers to underlayer sockets")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Acked-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Acked-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
---
 drivers/vhost/net.c |    1 +
 1 file changed, 1 insertion(+)

--- a/drivers/vhost/net.c
+++ b/drivers/vhost/net.c
@@ -1241,6 +1241,7 @@ static int vhost_net_open(struct inode *
 		kfree(vqs);
 		kvfree(n);
 		kfree(queue);
+		return -ENOMEM;
 	}
 	n->vqs[VHOST_NET_VQ_TX].xdp = xdp;