From 3dc077a80c71050e198e7884707ece042443fe3c Mon Sep 17 00:00:00 2001
From: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
Date: Tue, 23 Jul 2013 07:36:00 -0300
Subject: [PATCH 048/203] PCI: mvebu: Check valid base address before port
 setup

This driver does not fail to probe when it cannot obtain
a port base address. Therefore, add a check for NULL base address
before setting up the port, which prevents a kernel panic in such
cases.

Signed-off-by: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
Tested-by: Andrew Lunn <andrew@lunn.ch>
Tested-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
---
 drivers/pci/host/pci-mvebu.c | 2 ++
 1 file changed, 2 insertions(+)

--- a/drivers/pci/host/pci-mvebu.c
+++ b/drivers/pci/host/pci-mvebu.c
@@ -637,6 +637,8 @@ static int __init mvebu_pcie_setup(int n
 
 	for (i = 0; i < pcie->nports; i++) {
 		struct mvebu_pcie_port *port = &pcie->ports[i];
+		if (!port->base)
+			continue;
 		mvebu_pcie_setup_hw(port);
 	}