[patch -next] geneve: testing the wrong variable in geneve6_build_skb()

[Dan Carpenter]

We intended to test "err" and not "skb".

Fixes: aed069df099c ('ip_tunnel_core: iptunnel_handle_offloads returns int and 
doesn't free skb')
Signed-off-by: Dan Carpenter <dan.carpen...@oracle.com>

diff --git a/drivers/net/geneve.c b/drivers/net/geneve.c
index efbc7ce..512dbe0 100644
--- a/drivers/net/geneve.c
+++ b/drivers/net/geneve.c
@@ -733,7 +733,7 @@ static int geneve6_build_skb(struct dst_entry *dst, struct 
sk_buff *skb,
                goto free_dst;
 
        err = udp_tunnel_handle_offloads(skb, udp_sum);
-       if (IS_ERR(skb))
+       if (err)
                goto free_dst;
 
        gnvh = (struct genevehdr *)__skb_push(skb, sizeof(*gnvh) + opt_len);