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qlcnic: fix panic while using eth_hdr 

o skb->mac_header is not set, so machine panics while using function eth_hdr.

Signed-off-by: Rajesh Borundia <rajesh.borundia@qlogic.com>
Signed-off-by: Amit Kumar Salecha <amit.salecha@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Rajesh Borundia 2010-08-31 17:17:49 +00:00 committed by David S. Miller
parent 7613c87b2d
commit dcb50afff7
1 changed files with 3 additions and 1 deletions
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4
drivers/net/qlcnic/qlcnic_main.c
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@ -1991,6 +1991,7 @@ qlcnic_xmit_frame(struct sk_buff *skb, struct net_device *netdev)
struct qlcnic_skb_frag *buffrag;
struct cmd_desc_type0 *hwdesc, *first_desc;
struct pci_dev *pdev;
struct ethhdr *phdr;
int i, k;
u32 producer;
@ -2003,7 +2004,8 @@ qlcnic_xmit_frame(struct sk_buff *skb, struct net_device *netdev)
}
if (adapter->flags & QLCNIC_MACSPOOF) {
if (compare_ether_addr(eth_hdr(skb)->h_source,
phdr = (struct ethhdr *)skb->data;
if (compare_ether_addr(phdr->h_source,
adapter->mac_addr))
goto drop_packet;
}