Re: [PATCH 1/1] iommu/vt-d: Fix a potential memory leak

[Jacob Pan]

On Sat, 24 Feb 2018 13:42:27 +0800
Lu Baolu <baolu.lu@xxxxxxxxxxxxxxx> wrote:

> A memory block was allocated in intel_svm_bind_mm() but never freed
> in a failure path. This patch fixes this by free it to avoid memory
> leakage.
> 
looks good to me.

Thanks,
> Cc: Ashok Raj <ashok.raj@xxxxxxxxx>
> Cc: Jacob Pan <jacob.jun.pan@xxxxxxxxxxxxxxx>
> Cc: <stable@xxxxxxxxxxxxxxx> # v4.4+
> Signed-off-by: Lu Baolu <baolu.lu@xxxxxxxxxxxxxxx>
> ---
>  drivers/iommu/intel-svm.c | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/drivers/iommu/intel-svm.c b/drivers/iommu/intel-svm.c
> index 35a408d..3d4b924 100644
> --- a/drivers/iommu/intel-svm.c
> +++ b/drivers/iommu/intel-svm.c
> @@ -396,6 +396,7 @@ int intel_svm_bind_mm(struct device *dev, int
> *pasid, int flags, struct svm_dev_ pasid_max - 1, GFP_KERNEL);
>  		if (ret < 0) {
>  			kfree(svm);
> +			kfree(sdev);
>  			goto out;
>  		}
>  		svm->pasid = ret;

[Jacob Pan]