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watchdog: jz4740_wdt: Use 'dev' instead of dereferencing it repeatedly 

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().

The conversion was done automatically with coccinelle using the
following semantic patches. The semantic patches and the scripts
used to generate this commit log are available at
https://github.com/groeck/coccinelle-patches

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
This commit is contained in:
Guenter Roeck 2019-04-10 09:28:01 -07:00 committed by Wim Van Sebroeck
parent 570927df46
commit 02189bb91e
1 changed files with 6 additions and 7 deletions
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13
drivers/watchdog/jz4740_wdt.c
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@ -163,11 +163,12 @@ MODULE_DEVICE_TABLE(of, jz4740_wdt_of_matches);
static int jz4740_wdt_probe(struct platform_device *pdev)
{
struct device *dev = &pdev->dev;
struct jz4740_wdt_drvdata *drvdata;
struct watchdog_device *jz4740_wdt;
int ret;
drvdata = devm_kzalloc(&pdev->dev, sizeof(struct jz4740_wdt_drvdata),
drvdata = devm_kzalloc(dev, sizeof(struct jz4740_wdt_drvdata),
GFP_KERNEL);
if (!drvdata)
return -ENOMEM;
@ -181,7 +182,7 @@ static int jz4740_wdt_probe(struct platform_device *pdev)
jz4740_wdt->timeout = heartbeat;
jz4740_wdt->min_timeout = 1;
jz4740_wdt->max_timeout = MAX_HEARTBEAT;
jz4740_wdt->parent = &pdev->dev;
jz4740_wdt->parent = dev;
watchdog_set_nowayout(jz4740_wdt, nowayout);
watchdog_set_drvdata(jz4740_wdt, drvdata);
@ -189,18 +190,16 @@ static int jz4740_wdt_probe(struct platform_device *pdev)
if (IS_ERR(drvdata->base))
return PTR_ERR(drvdata->base);
drvdata->rtc_clk = devm_clk_get(&pdev->dev, "rtc");
drvdata->rtc_clk = devm_clk_get(dev, "rtc");
if (IS_ERR(drvdata->rtc_clk)) {
dev_err(&pdev->dev, "cannot find RTC clock\n");
dev_err(dev, "cannot find RTC clock\n");
return PTR_ERR(drvdata->rtc_clk);
}
ret = devm_watchdog_register_device(&pdev->dev, &drvdata->wdt);
ret = devm_watchdog_register_device(dev, &drvdata->wdt);
if (ret < 0)
return ret;
platform_set_drvdata(pdev, drvdata);
return 0;
}