From: Martin Hostettler <martin@neutronstar.dyndns.org>
Date: Tue, 18 Jan 2011 21:45:04 +0000 (+0000)
Subject: omap: iommu: Gracefully fail iommu_enable if no arch_iommu is registered
X-Git-Url: https://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=a3d6038b3ef9e8ae9986435b13a61597c946357b;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>
---

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