GenWQE: use kobj_to_dev()

Use kobj_to_dev() instead of open-coding it.

Signed-off-by: Geliang Tang <geliangtang@163.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/misc/genwqe/card_sysfs.c b/drivers/misc/genwqe/card_sysfs.c
index 6ab31ef..c24c9b7 100644 (file)
--- a/drivers/misc/genwqe/card_sysfs.c
+++ b/drivers/misc/genwqe/card_sysfs.c
@@ -278,7 +278,7 @@ static umode_t genwqe_is_visible(struct kobject *kobj,
                                 struct attribute *attr, int n)
 {
        unsigned int j;
-       struct device *dev = container_of(kobj, struct device, kobj);
+       struct device *dev = kobj_to_dev(kobj);
        struct genwqe_dev *cd = dev_get_drvdata(dev);
        umode_t mode = attr->mode;