leds: trigger: pattern: Switch to using the new API kobj_to_dev()

Tian Tao · pavelmachek · commit 5fe09e16c689 · 2021-04-25T23:38:10.000+02:00
Switch to using the new API kobj_to_dev() to fix the below warnning:
./drivers/leds/trigger/ledtrig-pattern.c:336:60-61: WARNING opportunity
for kobj_to_dev()

Signed-off-by: Tian Tao &lt;tiantao6@hisilicon.com&gt;
Signed-off-by: Pavel Machek &lt;pavel@ucw.cz&gt;
diff --git a/drivers/leds/trigger/ledtrig-pattern.c b/drivers/leds/trigger/ledtrig-pattern.c
@@ -333,7 +333,7 @@ static DEVICE_ATTR_RW(hw_pattern);
 static umode_t pattern_trig_attrs_mode(struct kobject *kobj,
 				       struct attribute *attr, int index)
 {
-	struct device *dev = container_of(kobj, struct device, kobj);
+	struct device *dev = kobj_to_dev(kobj);
 	struct led_classdev *led_cdev = dev_get_drvdata(dev);
 
 	if (attr == &dev_attr_repeat.attr || attr == &dev_attr_pattern.attr)

Original file line number	Diff line number	Diff line change
`@@ -333,7 +333,7 @@ static DEVICE_ATTR_RW(hw_pattern);`
`333`	`333`	`static umode_t pattern_trig_attrs_mode(struct kobject *kobj,`
`334`	`334`	`struct attribute *attr, int index)`
`335`	`335`	`{`
`336`		`- struct device *dev = container_of(kobj, struct device, kobj);`
	`336`	`+ struct device *dev = kobj_to_dev(kobj);`
`337`	`337`	`struct led_classdev *led_cdev = dev_get_drvdata(dev);`
`338`	`338`
`339`	`339`	`if (attr == &dev_attr_repeat.attr \|\| attr == &dev_attr_pattern.attr)`