Re: [PATCH 20/22] watchdog: jz4740_wdt: Use 'dev' instead of dereferencing it repeatedly

[Joe Perches]

On Wed, 2019-04-10 at 09:28 -0700, Guenter Roeck wrote:
> Introduce local variable 'struct device *dev' and use it instead of
> dereferencing it repeatedly. Also, there is no call to dev_get_drvdata()
> or platform_get_drvdata() in the driver, so drop the unnecessary
> call to platform_set_drvdata().

Dropping platform_set_drvdata seems to me like it should
be a separate patch.

And are you sure no other function uses a get_drvdata call?
Maybe something in watchdog_dev.c?  Possibly:

   #ifdef CONFIG_WATCHDOG_SYSFS
   static ssize_t nowayout_show(struct device *dev, struct device_attribute *attr,
   				char *buf)
   {
   	struct watchdog_device *wdd = dev_get_drvdata(dev);

   	return sprintf(buf, "%d\n", !!test_bit(WDOG_NO_WAY_OUT, &wdd->status));
   }
   static DEVICE_ATTR_RO(nowayout);

> diff --git a/drivers/watchdog/jz4740_wdt.c b/drivers/watchdog/jz4740_wdt.c
[]
> @@ -189,18 +190,16 @@ static int jz4740_wdt_probe(struct platform_device *pdev)
[]
> -	platform_set_drvdata(pdev, drvdata);
> -
>  	return 0;
>  }
>