[PATCH] device-dax: use kobj_to_dev()

[cgel . zte]

From: Minghao Chi <chi.ming...@zte.com.cn>

Use kobj_to_dev() instead of open-coding it.

Reported-by: Zeal Robot <zea...@zte.com.cn>
Signed-off-by: Minghao Chi <chi.ming...@zte.com.cn>
---
 drivers/dax/bus.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/dax/bus.c b/drivers/dax/bus.c
index 1dad813ee4a6..aebe884f5d99 100644
--- a/drivers/dax/bus.c
+++ b/drivers/dax/bus.c
@@ -512,7 +512,7 @@ static DEVICE_ATTR_WO(delete);
 static umode_t dax_region_visible(struct kobject *kobj, struct attribute *a,
                int n)
 {
-       struct device *dev = container_of(kobj, struct device, kobj);
+       struct device *dev = kobj_to_dev(kobj)
        struct dax_region *dax_region = dev_get_drvdata(dev);
 
        if (is_static(dax_region))
-- 
2.25.1