linux-kernel - [PATCH 4.4 067/138] iommu/vt-d: Return error code in domain_context_mapping

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Message-Id: <20160818135603.020367446@linuxfoundation.org>
Date:	Thu, 18 Aug 2016 15:57:57 +0200
From:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:	linux-kernel@...r.kernel.org
Cc:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	stable@...r.kernel.org, Wei Yang <richard.weiyang@...il.com>,
	Joerg Roedel <jroedel@...e.de>
Subject: [PATCH 4.4 067/138] iommu/vt-d: Return error code in domain_context_mapping_one()

4.4-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Wei Yang <richard.weiyang@...il.com>

commit 5c365d18a73d3979db37006eaacefc0008869c0f upstream.

In 'commit <55d940430ab9> ("iommu/vt-d: Get rid of domain->iommu_lock")',
the error handling path is changed a little, which makes the function
always return 0.

This path fixes this.

Signed-off-by: Wei Yang <richard.weiyang@...il.com>
Fixes: 55d940430ab9 ('iommu/vt-d: Get rid of domain->iommu_lock')
Signed-off-by: Joerg Roedel <jroedel@...e.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 drivers/iommu/intel-iommu.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/iommu/intel-iommu.c
+++ b/drivers/iommu/intel-iommu.c
@@ -2032,7 +2032,7 @@ out_unlock:
 	spin_unlock(&iommu->lock);
 	spin_unlock_irqrestore(&device_domain_lock, flags);
 
-	return 0;
+	return ret;
 }
 
 struct domain_context_mapping_data {