From: Roland Dreier <rdreier@cisco.com>
Date: Fri, 17 Oct 2008 21:18:26 +0000 (-0700)
Subject: cxgb3: Fix kernel crash caused by uninitialized l2t_entry.arpq
X-Git-Tag: v2.6.28-rc1~3^2~18
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=6d329af9967e7ab3f4a3d7f1e8ef87539c3a069f;p=pandora-kernel.git

cxgb3: Fix kernel crash caused by uninitialized l2t_entry.arpq

Commit 147e70e6 ("cxgb3: Use SKB list interfaces instead of home-grown
implementation.") causes a crash in t3_l2t_send_slow() when an iWARP
connection request is received.  This is because the new l2t_entry.arpq
skb queue is never initialized, and therefore trying to add an skb to
it causes a NULL dereference.  With the old code there was no need to
initialize the queues because the l2t_entry structures were zeroed,
and the code used NULL to mean empty.

Fix this by adding __skb_queue_head_init() when all the l2t_entry
structures get allocated.

Signed-off-by: Roland Dreier <rolandd@cisco.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
---

Reading git-diff-tree failed