linux-kernel - [Patch Part1 V2 04/20] iommu/vt-d: fix resource leakage on error recovery path in iommu_init

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Message-Id: <1386300083-6882-5-git-send-email-jiang.liu@linux.intel.com>
Date:	Fri,  6 Dec 2013 11:21:07 +0800
From:	Jiang Liu <jiang.liu@...ux.intel.com>
To:	Joerg Roedel <joro@...tes.org>,
	David Woodhouse <dwmw2@...radead.org>,
	Dan Williams <dan.j.williams@...el.com>,
	Vinod Koul <vinod.koul@...el.com>,
	Ashok Raj <ashok.raj@...el.com>,
	Yijing Wang <wangyijing@...wei.com>,
	iommu@...ts.linux-foundation.org, linux-kernel@...r.kernel.org
Cc:	Jiang Liu <jiang.liu@...ux.intel.com>,
	Tony Luck <tony.luck@...el.com>,
	Yinghai Lu <yinghai@...nel.org>, linux-pci@...r.kernel.org,
	dmaengine@...r.kernel.org
Subject: [Patch Part1 V2 04/20] iommu/vt-d: fix resource leakage on error recovery path in iommu_init_domains()

Release allocated resources on error recovery path in function
iommu_init_domains().

Acked-by: Yijing Wang <wangyijing@...wei.com>
Signed-off-by: Jiang Liu <jiang.liu@...ux.intel.com>
---
 drivers/iommu/intel-iommu.c |    2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/iommu/intel-iommu.c b/drivers/iommu/intel-iommu.c
index b8e3b48..2398876 100644
--- a/drivers/iommu/intel-iommu.c
+++ b/drivers/iommu/intel-iommu.c
@@ -1273,6 +1273,8 @@ static int iommu_init_domains(struct intel_iommu *iommu)
 			GFP_KERNEL);
 	if (!iommu->domains) {
 		printk(KERN_ERR "Allocating domain array failed\n");
+		kfree(iommu->domain_ids);
+		iommu->domain_ids = NULL;
 		return -ENOMEM;
 	}
 
-- 
1.7.10.4

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