platform/x86: samsung-laptop: use kobj_to_dev()

Use kobj_to_dev() instead of open-coding it.

Signed-off-by: Minghao Chi <chi.minghao@zte.com.cn>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Link: https://lore.kernel.org/r/20220511021522.1488373-1-chi.minghao@zte.com.cn
Signed-off-by: Hans de Goede <hdegoede@redhat.com>

diff --git a/drivers/platform/x86/samsung-laptop.c b/drivers/platform/x86/samsung-laptop.c
index 19f6b456234f8bd5443b38ceba4189c5c1ba7d03..c187dcdf82f0ba9a0e102c27a922035bd7b5411d 100644 (file)
--- a/drivers/platform/x86/samsung-laptop.c
+++ b/drivers/platform/x86/samsung-laptop.c
@@ -1208,7 +1208,7 @@ static int __init samsung_backlight_init(struct samsung_laptop *samsung)
 static umode_t samsung_sysfs_is_visible(struct kobject *kobj,
                                        struct attribute *attr, int idx)
 {
-       struct device *dev = container_of(kobj, struct device, kobj);
+       struct device *dev = kobj_to_dev(kobj);
        struct samsung_laptop *samsung = dev_get_drvdata(dev);
        bool ok = true;