From: Martin Hostettler <martin@neutronstar.dyndns.org>
Date: Thu, 24 Feb 2011 20:51:31 +0000 (-0800)
Subject: omap: iommu: Gracefully fail iommu_enable if no arch_iommu is registered
X-Git-Tag: v2.6.39-rc1~432^2~17^2~7
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=ef4815ab1ff10d642c21ef92faa6544934bc78d1;p=pandora-kernel.git

omap: iommu: Gracefully fail iommu_enable if no arch_iommu is registered

In a modular build of the iommu code it's possible that the arch iommu code
isn't loaded when trying to enable the iommu. Instead of blindly following a
null pointer return -NODEV in that case.

Signed-off-by: Martin Hostettler <martin@neutronstar.dyndns.org>
Signed-off-by: Tony Lindgren <tony@atomide.com>
---

Reading git-diff-tree failed