linux-kernel - Re: [PATCH v2 12/28] spi: s3c64xx: check return code of dmaengine_slave

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Date: Thu, 25 Jan 2024 14:19:44 -0600
From: Sam Protsenko <semen.protsenko@...aro.org>
To: Tudor Ambarus <tudor.ambarus@...aro.org>
Cc: broonie@...nel.org, andi.shyti@...nel.org, arnd@...db.de, 
	robh+dt@...nel.org, krzysztof.kozlowski+dt@...aro.org, conor+dt@...nel.org, 
	alim.akhtar@...sung.com, linux-spi@...r.kernel.org, 
	linux-samsung-soc@...r.kernel.org, devicetree@...r.kernel.org, 
	linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org, 
	linux-arch@...r.kernel.org, andre.draszik@...aro.org, 
	peter.griffin@...aro.org, kernel-team@...roid.com, willmcvicker@...gle.com
Subject: Re: [PATCH v2 12/28] spi: s3c64xx: check return code of dmaengine_slave_config()

On Thu, Jan 25, 2024 at 8:50 AM Tudor Ambarus <tudor.ambarus@...aroorg> wrote:
>
> Check the return code of dmaengine_slave_config().
>
> Signed-off-by: Tudor Ambarus <tudor.ambarus@...aro.org>
> ---

Reviewed-by: Sam Protsenko <semen.protsenko@...aro.org>

>  drivers/spi/spi-s3c64xx.c | 4 +++-
>  1 file changed, 3 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/spi/spi-s3c64xx.c b/drivers/spi/spi-s3c64xx.c
> index 107b4200ab00..48b87c5e2dd2 100644
> --- a/drivers/spi/spi-s3c64xx.c
> +++ b/drivers/spi/spi-s3c64xx.c
> @@ -297,7 +297,9 @@ static int prepare_dma(struct s3c64xx_spi_dma_data *dma,
>                 config.dst_maxburst = 1;
>         }
>         config.direction = dma->direction;
> -       dmaengine_slave_config(dma->ch, &config);
> +       ret = dmaengine_slave_config(dma->ch, &config);
> +       if (ret)
> +               return ret;
>
>         desc = dmaengine_prep_slave_sg(dma->ch, sgt->sgl, sgt->nents,
>                                        dma->direction, DMA_PREP_INTERRUPT);
> --
> 2.43.0.429.g432eaa2c6b-goog
>