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From: Alexey Kardashevskiy <aik@ozlabs.ru>
To: Greg Kurz <groug@kaod.org>, linux-kernel@vger.kernel.org
Cc: linuxppc-dev@lists.ozlabs.org,
	Michael Ellerman <mpe@ellerman.id.au>,
	Alex Williamson <alex.williamson@redhat.com>
Subject: Re: [PATCH] vfio-pci/nvlink2: Fix potential VMA leak
Date: Fri, 26 Apr 2019 17:50:22 +1000	[thread overview]
Message-ID: <d1a91bf1-d3b8-dd3b-a677-d0acc0dea277@ozlabs.ru> (raw)
In-Reply-To: <155568823785.601037.2151744205292679252.stgit@bahia.lan>



On 20/04/2019 01:37, Greg Kurz wrote:
> If vfio_pci_register_dev_region() fails then we should rollback
> previous changes, ie. unmap the ATSD registers.
> 
> Signed-off-by: Greg Kurz <groug@kaod.org>
> ---
>  drivers/vfio/pci/vfio_pci_nvlink2.c |    2 ++
>  1 file changed, 2 insertions(+)
> 
> diff --git a/drivers/vfio/pci/vfio_pci_nvlink2.c b/drivers/vfio/pci/vfio_pci_nvlink2.c
> index 32f695ffe128..50fe3c4f7feb 100644
> --- a/drivers/vfio/pci/vfio_pci_nvlink2.c
> +++ b/drivers/vfio/pci/vfio_pci_nvlink2.c
> @@ -472,6 +472,8 @@ int vfio_pci_ibm_npu2_init(struct vfio_pci_device *vdev)
>  	return 0;
>  
>  free_exit:
> +	if (data->base)
> +		memunmap(data->base);
>  	kfree(data);
>  
>  	return ret;
> 

Reviewed-by: Alexey Kardashevskiy <aik@ozlabs.ru>


-- 
Alexey

WARNING: multiple messages have this Message-ID (diff)
From: Alexey Kardashevskiy <aik@ozlabs.ru>
To: Greg Kurz <groug@kaod.org>, linux-kernel@vger.kernel.org
Cc: Alex Williamson <alex.williamson@redhat.com>,
	linuxppc-dev@lists.ozlabs.org
Subject: Re: [PATCH] vfio-pci/nvlink2: Fix potential VMA leak
Date: Fri, 26 Apr 2019 17:50:22 +1000	[thread overview]
Message-ID: <d1a91bf1-d3b8-dd3b-a677-d0acc0dea277@ozlabs.ru> (raw)
In-Reply-To: <155568823785.601037.2151744205292679252.stgit@bahia.lan>



On 20/04/2019 01:37, Greg Kurz wrote:
> If vfio_pci_register_dev_region() fails then we should rollback
> previous changes, ie. unmap the ATSD registers.
> 
> Signed-off-by: Greg Kurz <groug@kaod.org>
> ---
>  drivers/vfio/pci/vfio_pci_nvlink2.c |    2 ++
>  1 file changed, 2 insertions(+)
> 
> diff --git a/drivers/vfio/pci/vfio_pci_nvlink2.c b/drivers/vfio/pci/vfio_pci_nvlink2.c
> index 32f695ffe128..50fe3c4f7feb 100644
> --- a/drivers/vfio/pci/vfio_pci_nvlink2.c
> +++ b/drivers/vfio/pci/vfio_pci_nvlink2.c
> @@ -472,6 +472,8 @@ int vfio_pci_ibm_npu2_init(struct vfio_pci_device *vdev)
>  	return 0;
>  
>  free_exit:
> +	if (data->base)
> +		memunmap(data->base);
>  	kfree(data);
>  
>  	return ret;
> 

Reviewed-by: Alexey Kardashevskiy <aik@ozlabs.ru>


-- 
Alexey

  reply	other threads:[~2019-04-26  7:50 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-04-19 15:37 [PATCH] vfio-pci/nvlink2: Fix potential VMA leak Greg Kurz
2019-04-19 15:37 ` Greg Kurz
2019-04-26  7:50 ` Alexey Kardashevskiy [this message]
2019-04-26  7:50   ` Alexey Kardashevskiy
2019-05-06 21:58 ` Alex Williamson
2019-05-06 21:58   ` Alex Williamson
2019-05-07  1:52   ` Sam Bobroff
2019-05-07  1:52     ` Sam Bobroff
2019-05-07  7:01     ` Greg Kurz
2019-05-07  7:01       ` Greg Kurz
2019-05-07 17:25       ` Alex Williamson

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