From: Joerg Roedel <jroedel@suse.de>
Date: Thu, 21 Aug 2014 20:32:08 +0000 (+0200)
Subject: iommu/core: Make iommu_group_get_for_dev() more robust
X-Git-Tag: fixes-for-v3.18-merge-window~141^2~3
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=c4a783b89ee3fc1201510ecf204278da4ccb0993;p=pandora-kernel.git

iommu/core: Make iommu_group_get_for_dev() more robust

When a non-PCI device is passed to that function it might
pass group == NULL to iommu_group_add_device() which then
dereferences it and cause a crash this way. Fix it by
just returning an error for non-PCI devices.

Fixes: 104a1c13ac66e40cf8c6ae74d76ff14ff24b9b01
Cc: Alex Williamson <alex.williamson@redhat.com>
Acked-by: Alex Williamson <alex.williamson@redhat.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
---

Reading git-diff-tree failed