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

From: Jassi Brar
Date: Tue Sep 25 2012 - 08:47:14 EST


On Tue, Sep 25, 2012 at 2:27 PM, Inderpal Singh
<inderpal.singh@xxxxxxxxxx> 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@xxxxxxxxxx>
> ---
> 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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