From ea461abf61753b4b79e625a7c20650105b990f21 Mon Sep 17 00:00:00 2001
From: Gavin Shan <shangw@linux.vnet.ibm.com>
Date: Wed, 5 Jun 2013 15:34:02 +0800
Subject: [PATCH] powerpc/eeh: Fix fetching bus for single-dev-PE
While running Linux as guest on top of phyp, we possiblly have
PE that includes single PCI device. However, we didn't return
its PCI bus correctly and it leads to failure on recovery from
EEH errors for single-dev-PE. The patch fixes the issue.
Cc: <stable@vger.kernel.org> # v3.7+
Cc: Steve Best <sbest@us.ibm.com>
Signed-off-by: Gavin Shan <shangw@linux.vnet.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
---
arch/powerpc/platforms/pseries/eeh_pe.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/arch/powerpc/platforms/pseries/eeh_pe.c b/arch/powerpc/platforms/pseries/eeh_pe.c
index fe43d1aa2cf1c..9d4a9e8562b22 100644
--- a/arch/powerpc/platforms/pseries/eeh_pe.c
+++ b/arch/powerpc/platforms/pseries/eeh_pe.c
@@ -639,7 +639,8 @@ struct pci_bus *eeh_pe_bus_get(struct eeh_pe *pe)
if (pe->type & EEH_PE_PHB) {
bus = pe->phb->bus;
- } else if (pe->type & EEH_PE_BUS) {
+ } else if (pe->type & EEH_PE_BUS ||
+ pe->type & EEH_PE_DEVICE) {
edev = list_first_entry(&pe->edevs, struct eeh_dev, list);
pdev = eeh_dev_to_pci_dev(edev);
if (pdev)
--
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