From c0cabaddeeeab13db8ef4e275ab5c7c0e8746324 Mon Sep 17 00:00:00 2001
From: Sebastian Ott <sebott@linux.vnet.ibm.com>
Date: Fri, 22 Jan 2016 14:03:06 +0100
Subject: [PATCH] s390/pci: fix bar check

Fix the check which bar space we should map to allow available bars only.

Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com>
Reviewed-by: Gerald Schaefer <gerald.schaefer@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
---
 arch/s390/pci/pci.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/s390/pci/pci.c b/arch/s390/pci/pci.c
index 53139158010d..d28d194d580c 100644
--- a/arch/s390/pci/pci.c
+++ b/arch/s390/pci/pci.c
@@ -270,7 +270,7 @@ void __iomem *pci_iomap_range(struct pci_dev *pdev,
 	struct zpci_dev *zdev =	to_zpci(pdev);
 	int idx;
 
-	if ((bar & 7) != bar)
+	if (!pci_resource_len(pdev, bar))
 		return NULL;
 
 	idx = zdev->bars[bar].map_idx;
-- 
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