On Sat, Oct 21, 2017 at 07:45:13PM +0200, Corentin Labbe wrote:
> The usage of of_device_get_match_data reduce the code size a bit.
> Furthermore, it prevents an improbable dereference when
> of_match_device() return NULL.
> 
> Signed-off-by: Corentin Labbe <[email protected]>

Reviewed-by: Guenter Roeck <[email protected]>

> ---
>  drivers/watchdog/sunxi_wdt.c | 7 ++-----
>  1 file changed, 2 insertions(+), 5 deletions(-)
> 
> diff --git a/drivers/watchdog/sunxi_wdt.c b/drivers/watchdog/sunxi_wdt.c
> index 9728fa32c357..802e31b1416d 100644
> --- a/drivers/watchdog/sunxi_wdt.c
> +++ b/drivers/watchdog/sunxi_wdt.c
> @@ -234,7 +234,6 @@ MODULE_DEVICE_TABLE(of, sunxi_wdt_dt_ids);
>  static int sunxi_wdt_probe(struct platform_device *pdev)
>  {
>       struct sunxi_wdt_dev *sunxi_wdt;
> -     const struct of_device_id *device;
>       struct resource *res;
>       int err;
>  
> @@ -242,12 +241,10 @@ static int sunxi_wdt_probe(struct platform_device *pdev)
>       if (!sunxi_wdt)
>               return -EINVAL;
>  
> -     device = of_match_device(sunxi_wdt_dt_ids, &pdev->dev);
> -     if (!device)
> +     sunxi_wdt->wdt_regs = of_device_get_match_data(&pdev->dev);
> +     if (!sunxi_wdt->wdt_regs)
>               return -ENODEV;
>  
> -     sunxi_wdt->wdt_regs = device->data;
> -
>       res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
>       sunxi_wdt->wdt_base = devm_ioremap_resource(&pdev->dev, res);
>       if (IS_ERR(sunxi_wdt->wdt_base))

Reply via email to