From: Jiang Liu <jiang.liu@linux.intel.com>
Date: Wed, 19 Feb 2014 06:07:22 +0000 (+0800)
Subject: iommu/vt-d: Avoid caching stale domain_device_info and fix memory leak
X-Git-Tag: v3.15-rc1~70^2^6~56
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=816997d03bca9fabcee65f3481eb0297103eceb7;p=pandora-kernel.git

iommu/vt-d: Avoid caching stale domain_device_info and fix memory leak

Function device_notifier() in intel-iommu.c fails to remove
device_domain_info data structures for PCI devices if they are
associated with si_domain because iommu_no_mapping() returns true
for those PCI devices. This will cause memory leak and caching of
stale information in domain->devices list.

So fix the issue by not calling iommu_no_mapping() and skipping check
of iommu_pass_through.

Signed-off-by: Jiang Liu <jiang.liu@linux.intel.com>
Signed-off-by: Joerg Roedel <joro@8bytes.org>
---

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