diff options
Diffstat (limited to 'net/dsa/tag_edsa.c')
-rw-r--r-- | net/dsa/tag_edsa.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/net/dsa/tag_edsa.c b/net/dsa/tag_edsa.c index 2288c8098c42..3890aac8190f 100644 --- a/net/dsa/tag_edsa.c +++ b/net/dsa/tag_edsa.c @@ -120,9 +120,13 @@ static int edsa_rcv(struct sk_buff *skb, struct net_device *dev, * Check that the source device exists and that the source * port is a registered DSA port. */ - if (source_device >= dst->pd->nr_chips) + if (source_device >= DSA_MAX_SWITCHES) goto out_drop; + ds = dst->ds[source_device]; + if (!ds) + goto out_drop; + if (source_port >= DSA_MAX_PORTS || ds->ports[source_port] == NULL) goto out_drop; |