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From:   Sasha Levin <Alexander.Levin@microsoft.com>
To:     "stable@vger.kernel.org" <stable@vger.kernel.org>,
        "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
CC:     Bjorn Helgaas <bhelgaas@google.com>,
        Sasha Levin <Alexander.Levin@microsoft.com>
Subject: [PATCH AUTOSEL for 4.9 055/293] efi/fb: Correct PCI_STD_RESOURCE_END
 usage
Thread-Topic: [PATCH AUTOSEL for 4.9 055/293] efi/fb: Correct
 PCI_STD_RESOURCE_END usage
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Date:   Mon, 9 Apr 2018 00:23:32 +0000
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From: Bjorn Helgaas <bhelgaas@google.com>

[ Upstream commit 92a16c86299c64f58f320e491977408ba31b8c3c ]

PCI_STD_RESOURCE_END is (confusingly) the index of the last valid BAR, not
the *number* of BARs.  To iterate through all possible BARs, we need to
include PCI_STD_RESOURCE_END.

Fixes: 55d728a40d36 ("efi/fb: Avoid reconfiguration of BAR that covers the =
framebuffer")
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
---
 drivers/video/fbdev/efifb.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/video/fbdev/efifb.c b/drivers/video/fbdev/efifb.c
index 6f2e729a308f..f4b6d063a4b7 100644
--- a/drivers/video/fbdev/efifb.c
+++ b/drivers/video/fbdev/efifb.c
@@ -375,7 +375,7 @@ static void efifb_fixup_resources(struct pci_dev *dev)
 	if (!base)
 		return;
=20
-	for (i =3D 0; i < PCI_STD_RESOURCE_END; i++) {
+	for (i =3D 0; i <=3D PCI_STD_RESOURCE_END; i++) {
 		struct resource *res =3D &dev->resource[i];
=20
 		if (!(res->flags & IORESOURCE_MEM))
--=20
2.15.1