linux-kernel - [PATCH] pci: host: xgene: fix incorrectly returned address by map

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Date:	Tue, 17 Feb 2015 15:14:00 -0800
From:	Feng Kan <fkan@....com>
To:	patches@....com, linux-pci@...r.kernel.org,
	linux-kernel@...r.kernel.org, robh@...nel.org,
	linux-arm-kernel@...ts.infradead.org, tinamdar@....com
Cc:	Feng Kan <fkan@....com>
Subject: [PATCH] pci: host: xgene: fix incorrectly returned address by map_bus

The generic accessor functions for pci-xgene uses map_bus
call that returns the base address but did not add the additional
offset.

Signed-off-by: Feng Kan <fkan@....com>
---
 drivers/pci/host/pci-xgene.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/pci/host/pci-xgene.c b/drivers/pci/host/pci-xgene.c
index aab5547..ee082c0 100644
--- a/drivers/pci/host/pci-xgene.c
+++ b/drivers/pci/host/pci-xgene.c
@@ -127,7 +127,7 @@ static bool xgene_pcie_hide_rc_bars(struct pci_bus *bus, int offset)
 	return false;
 }
 
-static int xgene_pcie_map_bus(struct pci_bus *bus, unsigned int devfn,
+static void __iomem *xgene_pcie_map_bus(struct pci_bus *bus, unsigned int devfn,
 			      int offset)
 {
 	struct xgene_pcie_port *port = bus->sysdata;
@@ -137,7 +137,7 @@ static int xgene_pcie_map_bus(struct pci_bus *bus, unsigned int devfn,
 		return NULL;
 
 	xgene_pcie_set_rtdid_reg(bus, devfn);
-	return xgene_pcie_get_cfg_base(bus);
+	return xgene_pcie_get_cfg_base(bus) + offset;
 }
 
 static struct pci_ops xgene_pcie_ops = {
-- 
1.9.1

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