From: Suman Anna <s-anna@ti.com>
Date: Thu, 4 Sep 2014 22:27:29 +0000 (-0500)
Subject: iommu/omap: Check for valid archdata in attach_dev
X-Git-Tag: fixes-against-v3.18-rc2~67^2^3~2
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=e3f595b9039c888016211c710eb1f58b3f60f809;p=pandora-kernel.git

iommu/omap: Check for valid archdata in attach_dev

Any device requiring to be attached to an iommu_domain must have
valid archdata containing the necessary iommu information, which
is SoC-specific. Add a check in the omap_iommu_attach_dev to make
sure that the device has valid archdata before accessing
different SoC-specific fields of the archdata. This prevents a
NULL pointer dereference on any misconfigured devices.

Signed-off-by: Suman Anna <s-anna@ti.com>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
---

Reading git-diff-tree failed