From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Date: Sun, 20 Mar 2011 23:57:57 +0000 (+1100)
Subject: powerpc/pci: Fix crash in PCI code on ppc64 when matching device nodes
X-Git-Tag: v2.6.39-rc1~403^2~4
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=90407c9976939e061f32b0e07602e5ce4887d9e8;p=pandora-kernel.git

powerpc/pci: Fix crash in PCI code on ppc64 when matching device nodes

Commit b5d937de0367d26f65b9af1aef5f2c34c1939be0 has a bug which causes
basically a NULL dereference in the PCI code during boot on ppc64
machines.

fetch_dev_dn() is called when dev->dev.of_node is NULL, so using that
as the starting point for the search makes no sense. It should instead
start from the device node of the PHB.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
---

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