misc: mic: replace kfree with put_device

Handle a failed device_register(), replace kfree() with put_device(),
which will call cosm/mbus/scif_release_dev().

Signed-off-by: Geliang Tang <[e-mail]>
Signed-off-by: Greg Kroah-Hartman <[e-mail]>

drivers/misc/mic/bus/cosm_bus.c

···
 ida_remove:
 	ida_simple_remove(&cosm_index_ida, cdev->index);
 free_cdev:
-	kfree(cdev);
+	put_device(&cdev->dev);
 	return ERR_PTR(ret);
 }
 EXPORT_SYMBOL_GPL(cosm_register_device);

drivers/misc/mic/bus/mic_bus.c

···
 		goto free_mbdev;
 	return mbdev;
 free_mbdev:
-	kfree(mbdev);
+	put_device(&mbdev->dev);
 	return ERR_PTR(ret);
 }
 EXPORT_SYMBOL_GPL(mbus_register_device);

drivers/misc/mic/bus/scif_bus.c

···
 		goto free_sdev;
 	return sdev;
 free_sdev:
-	kfree(sdev);
+	put_device(&sdev->dev);
 	return ERR_PTR(ret);
 }
 EXPORT_SYMBOL_GPL(scif_register_device);