From: Nikolay Aleksandrov <nikolay@redhat.com>
Date: Fri, 14 Sep 2012 05:50:03 +0000 (+0000)
Subject: netxen: check for root bus in netxen_mask_aer_correctable
X-Git-Tag: v3.2.31~23
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=da49262a5dcbd87b727051e66e729bf17acb9a62;p=pandora-kernel.git

netxen: check for root bus in netxen_mask_aer_correctable

[ Upstream commit e4d1aa40e363ed3e0486aeeeb0d173f7f822737e ]

Add a check if pdev->bus->self == NULL (root bus). When attaching
a netxen NIC to a VM it can be on the root bus and the guest would
crash in netxen_mask_aer_correctable() because of a NULL pointer
dereference if CONFIG_PCIEAER is present.

Signed-off-by: Nikolay Aleksandrov <nikolay@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---

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