Re: [PATCH v4] mtd: rawnand: qcom: Unmap the right resource upon probe failure

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Hi Bibek,

quic_bibekkum@xxxxxxxxxxx wrote on Tue, 12 Sep 2023 17:29:03 +0530:

> We currently provide the physical address of the DMA region
> rather than the output of dma_map_resource() which is obviously wrong.
> 
> Fixes: 7330fc505af4 ("mtd: rawnand: qcom: stop using phys_to_dma()")

Cc: stable?

> Signed-off-by: Bibek Kumar Patro <quic_bibekkum@xxxxxxxxxxx>
> ---
> v4: Incorporated suggestion from Miquel
>     - Modified title and commit description.
> 
> v3: Incorporated comments from Miquel
>     - Modified the commit message and title as per suggestions.
>     https://lore.kernel.org/all/20230912101814.7748-1-quic_bibekkum@xxxxxxxxxxx/
> 
> v2: Incorporated comments from Pavan/Mani.
>     https://lore.kernel.org/all/20230911133026.29868-1-quic_bibekkum@xxxxxxxxxxx/
> 
> v1: https://lore.kernel.org/all/20230907092854.11408-1-quic_bibekkum@xxxxxxxxxxx/
> 
>  drivers/mtd/nand/raw/qcom_nandc.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/mtd/nand/raw/qcom_nandc.c b/drivers/mtd/nand/raw/qcom_nandc.c
> index 64499c1b3603..b079605c84d3 100644
> --- a/drivers/mtd/nand/raw/qcom_nandc.c
> +++ b/drivers/mtd/nand/raw/qcom_nandc.c
> @@ -3444,7 +3444,7 @@ static int qcom_nandc_probe(struct platform_device *pdev)
>  err_aon_clk:
>  	clk_disable_unprepare(nandc->core_clk);
>  err_core_clk:
> -	dma_unmap_resource(dev, res->start, resource_size(res),
> +	dma_unmap_resource(dev, nandc->base_dma, resource_size(res),
>  			   DMA_BIDIRECTIONAL, 0);
>  	return ret;
>  }
> --
> 2.17.1
> 


Thanks,
Miquèl




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