[PATCH] ndtest: 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>
---
 tools/testing/nvdimm/test/ndtest.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/testing/nvdimm/test/ndtest.c 
b/tools/testing/nvdimm/test/ndtest.c
index 4d1a947367f9..b32ee76e0c17 100644
--- a/tools/testing/nvdimm/test/ndtest.c
+++ b/tools/testing/nvdimm/test/ndtest.c
@@ -725,7 +725,7 @@ static DEVICE_ATTR_RO(format1);
 static umode_t ndtest_nvdimm_attr_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 nvdimm *nvdimm = to_nvdimm(dev);
        struct ndtest_dimm *dimm = nvdimm_provider_data(nvdimm);
 
-- 
2.25.1