From dfd0309fd7b30a5baffaf47b2fccb88b46d64d69 Mon Sep 17 00:00:00 2001
From: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Date: Fri, 3 Aug 2018 16:38:44 +0200
Subject: [PATCH] PCI: mvebu: Fix I/O space end address calculation
Git-commit: dfd0309fd7b30a5baffaf47b2fccb88b46d64d69
Patch-mainline: v4.19-rc1
References: bsc#1051510
pcie->realio.end should be the address of last byte of the area,
therefore using resource_size() of another resource is not correct, we
must substract 1 to get the address of the last byte.
Fixes: 11be65472a427 ("PCI: mvebu: Adapt to the new device tree layout")
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Acked-by: Takashi Iwai <tiwai@suse.de>
---
drivers/pci/host/pci-mvebu.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/pci/host/pci-mvebu.c
+++ b/drivers/pci/host/pci-mvebu.c
@@ -1221,7 +1221,7 @@ static int mvebu_pcie_probe(struct platf
pcie->realio.start = PCIBIOS_MIN_IO;
pcie->realio.end = min_t(resource_size_t,
IO_SPACE_LIMIT,
- resource_size(&pcie->io));
+ resource_size(&pcie->io) - 1);
} else
pcie->realio = pcie->io;