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authorDavid S. Miller <davem@davemloft.net>2014-12-23 23:57:38 -0500
committerDavid S. Miller <davem@davemloft.net>2014-12-23 23:57:38 -0500
commite51a08b8df461919451b1a2bf4a730da0b994425 (patch)
treef3db0334e66ecad72af35d47efac4f1a24edb736 /net/openvswitch/vport-gre.c
parentceb8d5bf17d366534f32d2f60f41d905a5bc864b (diff)
parent74f47278cb056ffe1d261df3e094d608c3569829 (diff)
Merge branch 'openvswitch-net'
Pravin B Shelar says: ==================== openvswitch: datapath fixes Following patch series is mostly targeted to MPLS fixes. other patches are related datapth transmit path error handling. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/openvswitch/vport-gre.c')
-rw-r--r--net/openvswitch/vport-gre.c18
1 files changed, 11 insertions, 7 deletions
diff --git a/net/openvswitch/vport-gre.c b/net/openvswitch/vport-gre.c
index 6b69df545b1d..28f54e9a6b80 100644
--- a/net/openvswitch/vport-gre.c
+++ b/net/openvswitch/vport-gre.c
@@ -73,7 +73,7 @@ static struct sk_buff *__build_header(struct sk_buff *skb,
skb = gre_handle_offloads(skb, !!(tun_key->tun_flags & TUNNEL_CSUM));
if (IS_ERR(skb))
- return NULL;
+ return skb;
tpi.flags = filter_tnl_flags(tun_key->tun_flags);
tpi.proto = htons(ETH_P_TEB);
@@ -144,7 +144,7 @@ static int gre_tnl_send(struct vport *vport, struct sk_buff *skb)
if (unlikely(!OVS_CB(skb)->egress_tun_info)) {
err = -EINVAL;
- goto error;
+ goto err_free_skb;
}
tun_key = &OVS_CB(skb)->egress_tun_info->tunnel;
@@ -157,8 +157,10 @@ static int gre_tnl_send(struct vport *vport, struct sk_buff *skb)
fl.flowi4_proto = IPPROTO_GRE;
rt = ip_route_output_key(net, &fl);
- if (IS_ERR(rt))
- return PTR_ERR(rt);
+ if (IS_ERR(rt)) {
+ err = PTR_ERR(rt);
+ goto err_free_skb;
+ }
tunnel_hlen = ip_gre_calc_hlen(tun_key->tun_flags);
@@ -183,8 +185,9 @@ static int gre_tnl_send(struct vport *vport, struct sk_buff *skb)
/* Push Tunnel header. */
skb = __build_header(skb, tunnel_hlen);
- if (unlikely(!skb)) {
- err = 0;
+ if (IS_ERR(skb)) {
+ err = PTR_ERR(rt);
+ skb = NULL;
goto err_free_rt;
}
@@ -198,7 +201,8 @@ static int gre_tnl_send(struct vport *vport, struct sk_buff *skb)
tun_key->ipv4_tos, tun_key->ipv4_ttl, df, false);
err_free_rt:
ip_rt_put(rt);
-error:
+err_free_skb:
+ kfree_skb(skb);
return err;
}