linux-kernel - Re: [PATCH 1/3] DMA: PL330: Free memory allocated for peripheral channels

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Message-ID: <CABb+yY1DiWT6-faPe24wVYLwO9vP0W7KswcAyqAWd5VH-JfizA@mail.gmail.com>
Date:	Tue, 25 Sep 2012 18:17:22 +0530
From:	Jassi Brar <jassisinghbrar@...il.com>
To:	Inderpal Singh <inderpal.singh@...aro.org>
Cc:	linux-samsung-soc@...r.kernel.org, linux-kernel@...r.kernel.org,
	boojin.kim@...sung.com, vinod.koul@...el.com, patches@...aro.org,
	kgene.kim@...sung.com
Subject: Re: [PATCH 1/3] DMA: PL330: Free memory allocated for peripheral channels

On Tue, Sep 25, 2012 at 2:27 PM, Inderpal Singh
<inderpal.singh@...aro.org> wrote:
> The allocated memory for peripheral channels is not being freed upon
> failure in probe and in module's remove funtion. It will lead to memory
> leakage. Hence free the allocated memory.
>
> Signed-off-by: Inderpal Singh <inderpal.singh@...aro.org>
> ---
>  drivers/dma/pl330.c |    5 ++++-
>  1 file changed, 4 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/dma/pl330.c b/drivers/dma/pl330.c
> index 2ebd4cd..10c6b6a 100644
> --- a/drivers/dma/pl330.c
> +++ b/drivers/dma/pl330.c
> @@ -2962,7 +2962,7 @@ pl330_probe(struct amba_device *adev, const struct amba_id *id)
>         ret = dma_async_device_register(pd);
>         if (ret) {
>                 dev_err(&adev->dev, "unable to register DMAC\n");
> -               goto probe_err4;
> +               goto probe_err5;
>         }
>
Sorry this patch seems malformed. Against which tree did you prepare it ?

-jassi



>         dev_info(&adev->dev,
> @@ -2975,6 +2975,8 @@ pl330_probe(struct amba_device *adev, const struct amba_id *id)
>
>         return 0;
>
> +probe_err5:
> +       kfree(pdmac->peripherals);
>  probe_err4:
>         pl330_del(pi);
>  probe_err3:
> @@ -3025,6 +3027,7 @@ static int __devexit pl330_remove(struct amba_device *adev)
>         res = &adev->res;
>         release_mem_region(res->start, resource_size(res));
>
> +       kfree(pdmac->peripherals);
>         kfree(pdmac);
>
>         return 0;
> --
> 1.7.9.5
>
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