linux-kernel - Re: [Patch Part1 V2 04/17] iommu/vt-d: fix resource leakage on error recovery path in iommu_init

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Message-ID: <529BE547.9030508@huawei.com>
Date:	Mon, 2 Dec 2013 09:41:27 +0800
From:	Yijing Wang <wangyijing@...wei.com>
To:	Jiang Liu <jiang.liu@...ux.intel.com>,
	Yinghai Lu <yinghai@...nel.org>,
	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>
CC:	<iommu@...ts.linux-foundation.org>, <linux-pci@...r.kernel.org>,
	<linux-kernel@...r.kernel.org>, <dmaengine@...r.kernel.org>
Subject: Re: [Patch Part1 V2 04/17] iommu/vt-d: fix resource leakage on error
 recovery path in iommu_init_domains()

On 2013/11/29 16:50, Jiang Liu wrote:
> Release allocated resources on error recovery path in function
> iommu_init_domains().
> 
> 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;
>  	}
>  
> 

Acked-by: Yijing Wang <wangyijing@...wei.com>

-- 
Thanks!
Yijing

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