driver core: revert "device" link creation check

driver core: revert "device" link creation check

Commit 2ee97caf introduced an extra
check on when to create the "device" symlink. Unfortunately, this
breaks input, so let's revert to the old behaviour.
Signed-off-by: NCornelia Huck <cornelia.huck@de.ibm.com>
Acked-by: NKay Sievers <kay.sievers@vrfy.org>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

drivers/base/core.c

@@ -678,8 +678,7 @@ static int device_add_class_symlinks(struct device *dev)
 		if (error)
 			goto out_subsys;
 	}
-	/* only bus-device parents get a "device"-link */
-	if (dev->parent && dev->parent->bus) {
+	if (dev->parent) {
 		error = sysfs_create_link(&dev->kobj, &dev->parent->kobj,
 					  "device");
 		if (error)