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dpif-netdev: Fix memory leak in tunnel header pop action.

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The tunnel header pop action can leak batch of packet
in case of error. Following patch fixex the error code path.

Signed-off-by: Pravin B Shelar <pshelar@ovn.org>
Acked-by: Jesse Gross <jesse@kernel.org>
This commit is contained in:
Pravin B Shelar
2016-05-17 17:32:37 -07:00
parent 1895cc8dbb
commit 9235b4793e
3 changed files with 13 additions and 17 deletions
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21
lib/dpif-netdev.c
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@@ -3751,30 +3751,25 @@ dp_execute_cb(void *aux_, struct dp_packet_batch *packets_,
p = dp_netdev_lookup_port(dp, portno);
if (p) {
struct dp_packet_batch tnl_pkt;
int err;
int i;
if (!may_steal) {
dp_packet_batch_clone(&tnl_pkt, packets_);
packets_ = &tnl_pkt;
}
err = netdev_pop_header(p->netdev, packets_);
netdev_pop_header(p->netdev, packets_);
if (!packets_->count) {
return;
}
if (!err) {
int i;
for (i = 0; i < packets_->count; i++) {
packets_->packets[i]->md.in_port.odp_port = portno;
}
(*depth)++;
dp_netdev_recirculate(pmd, packets_);
(*depth)--;
} else {
dp_packet_delete_batch(&tnl_pkt, !may_steal);
for (i = 0; i < packets_->count; i++) {
packets_->packets[i]->md.in_port.odp_port = portno;
}
(*depth)++;
dp_netdev_recirculate(pmd, packets_);
(*depth)--;
return;
}
}