This is a note to let you know that I've just added the patch titled
iommu/vt-d: Check return value of acpi_bus_get_device()
to the 3.16-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
iommu-vt-d-check-return-value-of-acpi_bus_get_device.patch
and it can be found in the queue-3.16 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From c0df975f9045d6b2b13d88746e628ac308ff49ea Mon Sep 17 00:00:00 2001
From: Joerg Roedel <jroedel@xxxxxxx>
Date: Thu, 21 Aug 2014 23:06:48 +0200
Subject: iommu/vt-d: Check return value of acpi_bus_get_device()
From: Joerg Roedel <jroedel@xxxxxxx>
commit c0df975f9045d6b2b13d88746e628ac308ff49ea upstream.
Checking adev == NULL is not sufficient as
acpi_bus_get_device() might not touch the value of this
parameter in an error case, so check the return value
directly.
Fixes: ed40356b5fcf1ce28e026ab39c5b2b6939068b50
Cc: David Woodhouse <dwmw2@xxxxxxxxxxxxx>
Signed-off-by: Joerg Roedel <jroedel@xxxxxxx>
Reviewed-by: Alex Williamson <alex.williamson@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/iommu/dmar.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
--- a/drivers/iommu/dmar.c
+++ b/drivers/iommu/dmar.c
@@ -677,8 +677,7 @@ static int __init dmar_acpi_dev_scope_in
andd->object_name);
continue;
}
- acpi_bus_get_device(h, &adev);
- if (!adev) {
+ if (acpi_bus_get_device(h, &adev)) {
pr_err("Failed to get device for ACPI object %s\n",
andd->object_name);
continue;
Patches currently in stable-queue which might be from jroedel@xxxxxxx are
queue-3.16/iommu-vt-d-check-return-value-of-acpi_bus_get_device.patch
queue-3.16/iommu-fsl-fix-warning-resulting-from-adding-pci-device-twice.patch
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