Re: [PATCH v2 04/10] mfd: rz-mtu3: store &pdev->dev in local variable

[Lee Jones <lee@kernel.org>]

On Fri, 10 Apr 2026, Cosmin Tanislav wrote:

> &pdev->dev is accessed multiple times during probe. Store it in a local
> variable and use that to simplify the code.
> 
> Signed-off-by: Cosmin Tanislav <cosmin-gabriel.tanislav.xa@renesas.com>
> ---
> 
> V2:
>  * no changes
> 
>  drivers/mfd/rz-mtu3.c | 11 ++++++-----
>  1 file changed, 6 insertions(+), 5 deletions(-)

This is fine.

> diff --git a/drivers/mfd/rz-mtu3.c b/drivers/mfd/rz-mtu3.c
> index 3be6f6c900b82..37d12030e069c 100644
> --- a/drivers/mfd/rz-mtu3.c
> +++ b/drivers/mfd/rz-mtu3.c
> @@ -311,16 +311,17 @@ static const struct mfd_cell rz_mtu3_devs[] = {
>  
>  static int rz_mtu3_probe(struct platform_device *pdev)
>  {
> +	struct device *dev = &pdev->dev;
>  	struct reset_control *rstc;
>  	struct rz_mtu3_priv *priv;
>  	struct rz_mtu3 *ddata;
>  	unsigned int i;
>  
> -	ddata = devm_kzalloc(&pdev->dev, sizeof(*ddata), GFP_KERNEL);
> +	ddata = devm_kzalloc(dev, sizeof(*ddata), GFP_KERNEL);
>  	if (!ddata)
>  		return -ENOMEM;
>  
> -	ddata->priv_data = devm_kzalloc(&pdev->dev, sizeof(*priv), GFP_KERNEL);
> +	ddata->priv_data = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
>  	if (!ddata->priv_data)
>  		return -ENOMEM;
>  
> @@ -330,11 +331,11 @@ static int rz_mtu3_probe(struct platform_device *pdev)
>  	if (IS_ERR(priv->mmio))
>  		return PTR_ERR(priv->mmio);
>  
> -	rstc = devm_reset_control_get_exclusive_deasserted(&pdev->dev, NULL);
> +	rstc = devm_reset_control_get_exclusive_deasserted(dev, NULL);
>  	if (IS_ERR(rstc))
>  		return PTR_ERR(rstc);
>  
> -	ddata->clk = devm_clk_get(&pdev->dev, NULL);
> +	ddata->clk = devm_clk_get(dev, NULL);
>  	if (IS_ERR(ddata->clk))
>  		return PTR_ERR(ddata->clk);
>  
> @@ -347,7 +348,7 @@ static int rz_mtu3_probe(struct platform_device *pdev)
>  		mutex_init(&ddata->channels[i].lock);
>  	}
>  
> -	return devm_mfd_add_devices(&pdev->dev, 0, rz_mtu3_devs,
> +	return devm_mfd_add_devices(dev, 0, rz_mtu3_devs,
>  				    ARRAY_SIZE(rz_mtu3_devs), NULL, 0, NULL);
>  }
>  
> -- 
> 2.53.0

-- 
Lee Jones