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IPoIB: Fix oops with raw sockets

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ipoib_hard_header() needs to handle the case that daddr is NULL.  This
can happen when packets are injected via a raw socket, and IPoIB
shouldn't oops in this case.

Reported by Anton Blanchard <anton@samba.org>

Signed-off-by: Roland Dreier <rolandd@cisco.com>
This commit is contained in:
Roland Dreier 2006-03-29 09:36:46 -08:00
parent a07bacca7b
commit ef12d45619
1 changed files with 1 additions and 1 deletions
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2
drivers/infiniband/ulp/ipoib/ipoib_main.c
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@ -723,7 +723,7 @@ static int ipoib_hard_header(struct sk_buff *skb,
* destination address onto the front of the skb so we can * destination address onto the front of the skb so we can
* figure out where to send the packet later. * figure out where to send the packet later.
*/ */
if (!skb->dst || !skb->dst->neighbour) { if ((!skb->dst || !skb->dst->neighbour) && daddr) {
struct ipoib_pseudoheader *phdr = struct ipoib_pseudoheader *phdr =
(struct ipoib_pseudoheader *) skb_push(skb, sizeof *phdr); (struct ipoib_pseudoheader *) skb_push(skb, sizeof *phdr);
memcpy(phdr->hwaddr, daddr, INFINIBAND_ALEN); memcpy(phdr->hwaddr, daddr, INFINIBAND_ALEN);