diff --git a/drivers/s390/s390_rdev.c b/drivers/s390/s390_rdev.c
index e3f6471..3c7145d 100644
--- a/drivers/s390/s390_rdev.c
+++ b/drivers/s390/s390_rdev.c
@@ -27,10 +27,9 @@
 
 	if (!strlen(name))
 		return ERR_PTR(-EINVAL);
-	dev = kmalloc(sizeof(struct device), GFP_KERNEL);
+	dev = kzalloc(sizeof(struct device), GFP_KERNEL);
 	if (!dev)
 		return ERR_PTR(-ENOMEM);
-	memset(dev, 0, sizeof(struct device));
 	strncpy(dev->bus_id, name, min(strlen(name), (size_t)BUS_ID_SIZE));
 	dev->release = s390_root_dev_release;
 	ret = device_register(dev);