linux-kernel - Re: [PATCH v2 2/2] i2c: davinci: Use struct name not type with devm

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Message-ID: <CAMRc=McpFw+4=Vb2aL98Fba1x=bvtxX=VOjNCC5puhxkh+MF5g@mail.gmail.com>
Date:   Tue, 16 May 2023 16:45:20 +0200
From:   Bartosz Golaszewski <brgl@...ev.pl>
To:     Andrew Davis <afd@...com>
Cc:     Wolfram Sang <wsa@...nel.org>,
        linux-arm-kernel@...ts.infradead.org, linux-i2c@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 2/2] i2c: davinci: Use struct name not type with devm_kzalloc()

On Mon, May 15, 2023 at 7:50 PM Andrew Davis <afd@...com> wrote:
>
> This reduces chance of error if the type of "dev" changes. While here
> remove extra error print out, this is not usually done for memory
> allocation failures.
>
> Signed-off-by: Andrew Davis <afd@...com>
> ---
>  drivers/i2c/busses/i2c-davinci.c | 7 ++-----
>  1 file changed, 2 insertions(+), 5 deletions(-)
>
> diff --git a/drivers/i2c/busses/i2c-davinci.c b/drivers/i2c/busses/i2c-davinci.c
> index c55bd937def7..135f76593e6f 100644
> --- a/drivers/i2c/busses/i2c-davinci.c
> +++ b/drivers/i2c/busses/i2c-davinci.c
> @@ -767,12 +767,9 @@ static int davinci_i2c_probe(struct platform_device *pdev)
>         if (irq < 0)
>                 return dev_err_probe(&pdev->dev, irq, "can't get irq resource\n");
>
> -       dev = devm_kzalloc(&pdev->dev, sizeof(struct davinci_i2c_dev),
> -                       GFP_KERNEL);
> -       if (!dev) {
> -               dev_err(&pdev->dev, "Memory allocation failed\n");
> +       dev = devm_kzalloc(&pdev->dev, sizeof(*dev), GFP_KERNEL);
> +       if (!dev)
>                 return -ENOMEM;
> -       }
>
>         init_completion(&dev->cmd_complete);
>
> --
> 2.39.2
>

Reviewed-by: Bartosz Golaszewski <bartosz.golaszewski@...aro.org>