From: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Date: Tue, 17 Nov 2009 22:44:35 +0000 (-0800)
Subject: [IA64] fix SBA IOMMU to handle allocation failure properly
X-Git-Tag: v2.6.33-rc1~56^2~2
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=e2a465675dc089e9a56ba2fa2a5fbd9bd8844d18;p=pandora-kernel.git

[IA64] fix SBA IOMMU to handle allocation failure properly

It's possible that SBA IOMMU might fail to find I/O space under heavy
I/Os.  SBA IOMMU panics on allocation failure but it shouldn't; drivers
can handle the failure.  The majority of other IOMMU drivers don't panic
on allocation failure.

This patch fixes SBA IOMMU path to handle allocation failure properly.

Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Cc: Fenghua Yu <fenghua.yu@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Tony Luck <tony.luck@intel.com>
---

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