linux-kernel - Re: [PATCH] spi: altera: Fix memory leak on error path

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Message-ID: <29bc2be2-911e-e892-4d1c-cc5c8ce10571@redhat.com>
Date:   Wed, 20 Jan 2021 07:03:42 -0800
From:   Tom Rix <trix@...hat.com>
To:     Pan Bian <bianpan2016@....com>, Mark Brown <broonie@...nel.org>,
        Xu Yilun <yilun.xu@...el.com>,
        Matthew Gerlach <matthew.gerlach@...ux.intel.com>,
        Wu Hao <hao.wu@...el.com>
Cc:     linux-spi@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] spi: altera: Fix memory leak on error path


On 1/20/21 12:26 AM, Pan Bian wrote:
> Release master that have been previously allocated if the number of
> chipselect is invalid.
>
> Fixes: 8e04187c1bc7 ("spi: altera: add SPI core parameters support via platform data.")
> Signed-off-by: Pan Bian <bianpan2016@....com>
> ---
>  drivers/spi/spi-altera.c | 3 ++-
>  1 file changed, 2 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/spi/spi-altera.c b/drivers/spi/spi-altera.c
> index cbc4c28c1541..62ea0c9e321b 100644
> --- a/drivers/spi/spi-altera.c
> +++ b/drivers/spi/spi-altera.c
> @@ -254,7 +254,8 @@ static int altera_spi_probe(struct platform_device *pdev)
>  			dev_err(&pdev->dev,
>  				"Invalid number of chipselect: %hu\n",
>  				pdata->num_chipselect);
> -			return -EINVAL;
> +			err = -EINVAL;
> +			goto exit;
>  		}
>  
>  		master->num_chipselect = pdata->num_chipselect;
Reviewed-by: Tom Rix <trix@...hat.com>