From: Joerg Roedel <jroedel@suse.de>
Date: Tue, 5 Aug 2014 15:50:15 +0000 (+0200)
Subject: iommu/amd: Fix cleanup_domain for mass device removal
X-Git-Tag: v3.2.64~162
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=36d724c9ec52f8c1dc29f2d9b98d5b82ff4e4e8b;p=pandora-kernel.git

iommu/amd: Fix cleanup_domain for mass device removal

commit 9b29d3c6510407d91786c1cf9183ff4debb3473a upstream.

When multiple devices are detached in __detach_device, they
are also removed from the domains dev_list. This makes it
unsafe to use list_for_each_entry_safe, as the next pointer
might also not be in the list anymore after __detach_device
returns. So just repeatedly remove the first element of the
list until it is empty.

Tested-by: Marti Raudsepp <marti@juffo.org>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---

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