From e4d1aa40e363ed3e0486aeeeb0d173f7f822737e Mon Sep 17 00:00:00 2001
From: Nikolay Aleksandrov <nikolay@redhat.com>
Date: Fri, 14 Sep 2012 05:50:03 +0000
Subject: [PATCH] netxen: check for root bus in netxen_mask_aer_correctable

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>
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