Re: [PATCH v2 1/1] power: reset: at91-reset: use devm_of_iomap

From: Sebastian Reichel
Date: Fri Apr 02 2021 - 07:13:35 EST


Hi,

On Fri, Apr 02, 2021 at 01:50:18PM +0300, Claudiu Beznea wrote:
> Use devm_of_iomap() to map resources. This will avoid the necessity to
> track the mapped resources and free them on failure path or on remove.
>
> Reported-by: kernel test robot <lkp@xxxxxxxxx>
> Reported-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
> Suggested-by: Nicolas Ferre <nicolas.ferre@xxxxxxxxxxxxx>
> Signed-off-by: Claudiu Beznea <claudiu.beznea@xxxxxxxxxxxxx>
> ---

Thanks, queued.

-- Sebastian

> Changes in v2:
> - use devm_of_iomap()
> - change commit description and title to match to the new approach
> - add Suggested-by tag
>
> drivers/power/reset/at91-reset.c | 4 ++--
> 1 file changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/power/reset/at91-reset.c b/drivers/power/reset/at91-reset.c
> index 3ff9d93a5226..026649409135 100644
> --- a/drivers/power/reset/at91-reset.c
> +++ b/drivers/power/reset/at91-reset.c
> @@ -192,7 +192,7 @@ static int __init at91_reset_probe(struct platform_device *pdev)
> if (!reset)
> return -ENOMEM;
>
> - reset->rstc_base = of_iomap(pdev->dev.of_node, 0);
> + reset->rstc_base = devm_of_iomap(&pdev->dev, pdev->dev.of_node, 0, NULL);
> if (!reset->rstc_base) {
> dev_err(&pdev->dev, "Could not map reset controller address\n");
> return -ENODEV;
> @@ -202,7 +202,7 @@ static int __init at91_reset_probe(struct platform_device *pdev)
> /* we need to shutdown the ddr controller, so get ramc base */
> for_each_matching_node_and_match(np, at91_ramc_of_match, &match) {
> reset->ramc_lpr = (u32)match->data;
> - reset->ramc_base[idx] = of_iomap(np, 0);
> + reset->ramc_base[idx] = devm_of_iomap(&pdev->dev, np, 0, NULL);
> if (!reset->ramc_base[idx]) {
> dev_err(&pdev->dev, "Could not map ram controller address\n");
> of_node_put(np);
> --
> 2.25.1
>

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