linux-kernel - Re: [PATCH -next] iommu/amd: fix error return code in early_amd_iommu

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Date:	Tue, 23 Apr 2013 14:38:40 +0200
From:	Joerg Roedel <joro@...tes.org>
To:	Wei Yongjun <weiyj.lk@...il.com>
Cc:	yongjun_wei@...ndmicro.com.cn, iommu@...ts.linux-foundation.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH -next] iommu/amd: fix error return code in
 early_amd_iommu_init()

On Tue, Apr 23, 2013 at 10:47:44AM +0800, Wei Yongjun wrote:
> From: Wei Yongjun <yongjun_wei@...ndmicro.com.cn>
> 
> Fix to return -ENOMEM int the memory alloc error handling
> case instead of 0, as done elsewhere in this function.
> 
> Signed-off-by: Wei Yongjun <yongjun_wei@...ndmicro.com.cn>
> ---
>  drivers/iommu/amd_iommu_init.c | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/drivers/iommu/amd_iommu_init.c b/drivers/iommu/amd_iommu_init.c
> index 9110c1c..a55ec50 100644
> --- a/drivers/iommu/amd_iommu_init.c
> +++ b/drivers/iommu/amd_iommu_init.c
> @@ -1860,6 +1860,7 @@ static int __init early_amd_iommu_init(void)
>  		 * Interrupt remapping enabled, create kmem_cache for the
>  		 * remapping tables.
>  		 */
> +		ret = -ENOMEM;
>  		amd_iommu_irq_cache = kmem_cache_create("irq_remap_cache",
>  				MAX_IRQS_PER_TABLE * sizeof(u32),
>  				IRQ_TABLE_ALIGNMENT,
>

Applied to x86/amd, thanks.

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