linux-kernel - [PATCH 3 of 7] [x86-64] Calgary IOMMU: break out of pci_find_device

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Date:	Tue, 25 Jul 2006 19:56:33 +0300
From:	Muli Ben-Yehuda <muli@...ibm.com>
To:	ak@...e.de
Cc:	jdmason@...ibm.com, linux-kernel@...r.kernel.org,
	discuss@...-64.org, muli@...ibm.com
Subject: [PATCH 3 of 7] [x86-64] Calgary IOMMU: break out of
	pci_find_device_reverse if dev not found

1 files changed, 2 insertions(+)
arch/x86_64/kernel/pci-calgary.c |    2 ++


# HG changeset patch
# User Muli Ben-Yehuda <muli@...ibm.com>
# Date 1153737003 -10800
# Node ID 4b8fbf25700873a70eff09264e52e9f6c6330c18
# Parent  f85ffa73fb99f4796043a8e50bef1180e36fe582
[x86-64] Calgary IOMMU: break out of pci_find_device_reverse if dev not found

Signed-off-by: Muli Ben-Yehuda <muli@...ibm.com>
Signed-off-by: Jon Mason <jdmason@...ibm.com>

diff -r f85ffa73fb99 -r 4b8fbf257008 arch/x86_64/kernel/pci-calgary.c
--- a/arch/x86_64/kernel/pci-calgary.c	Mon Jul 24 13:01:16 2006 +0300
+++ b/arch/x86_64/kernel/pci-calgary.c	Mon Jul 24 13:30:03 2006 +0300
@@ -844,6 +844,8 @@ error:
 		dev = pci_find_device_reverse(PCI_VENDOR_ID_IBM,
 					      PCI_DEVICE_ID_IBM_CALGARY,
 					      dev);
+		if (!dev)
+			break;
 		if (!translate_phb(dev)) {
 			pci_dev_put(dev);
 			continue;
-
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