From 4550dcca25723fb3014d4a352eed5aa6f472245b Mon Sep 17 00:00:00 2001 From: Alexander Duyck Date: Tue, 23 Mar 2010 18:35:18 +0000 Subject: [PATCH] igb: only use vlan_gro_receive if vlans are registered commit 31b24b955c3ebbb6f3008a6374e61cf7c05a193c upstream. This change makes it so that vlan_gro_receive is only used if vlans have been registered to the adapter structure. Previously we were just sending all vlan tagged frames in via this function but this results in a null pointer dereference when vlans are not registered. [ This fixes bugzilla entry 15582 -Eric Dumazet] Signed-off-by: Alexander Duyck Signed-off-by: Jeff Kirsher Acked-by: Eric Dumazet Signed-off-by: David S. Miller Signed-off-by: Greg Kroah-Hartman --- drivers/net/igb/igb_main.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/igb/igb_main.c b/drivers/net/igb/igb_main.c index c881347cb26df..01c3885de3fcb 100644 --- a/drivers/net/igb/igb_main.c +++ b/drivers/net/igb/igb_main.c @@ -5010,7 +5010,7 @@ static void igb_receive_skb(struct igb_q_vector *q_vector, { struct igb_adapter *adapter = q_vector->adapter; - if (vlan_tag) + if (vlan_tag && adapter->vlgrp) vlan_gro_receive(&q_vector->napi, adapter->vlgrp, vlan_tag, skb); else -- 2.47.2