From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754018AbdLDQOj (ORCPT ); Mon, 4 Dec 2017 11:14:39 -0500 Received: from mail-pf0-f196.google.com ([209.85.192.196]:41248 "EHLO mail-pf0-f196.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753839AbdLDQLv (ORCPT ); Mon, 4 Dec 2017 11:11:51 -0500 X-Google-Smtp-Source: AGs4zMaz3jTXBZd8nHfqKDbgFdTeIIPIlZ2EiI+qfwTFfhMNMAgJuf1OMxWTuU2fKlsriqPpRonckw== From: Andrey Smirnov To: Lee Jones Cc: Andrey Smirnov , linux-kernel@vger.kernel.org, linux-serial@vger.kernel.org, Rob Herring , cphealy@gmail.com, Guenter Roeck , Lucas Stach , Nikita Yushchenko , Greg Kroah-Hartman , Pavel Machek , Andy Shevchenko , Johan Hovold , Sebastian Reichel Subject: [PATCH v13 1/5] serdev: Make .remove in struct serdev_device_driver optional Date: Mon, 4 Dec 2017 08:11:14 -0800 Message-Id: <20171204161118.19558-2-andrew.smirnov@gmail.com> X-Mailer: git-send-email 2.14.3 In-Reply-To: <20171204161118.19558-1-andrew.smirnov@gmail.com> References: <20171204161118.19558-1-andrew.smirnov@gmail.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Using devres infrastructure it is possible to write a serdev driver that doesn't have any code that needs to be called as a part of .remove. Add code to make .remove optional. Cc: linux-kernel@vger.kernel.org Cc: linux-serial@vger.kernel.org Cc: Rob Herring Cc: cphealy@gmail.com Cc: Guenter Roeck Cc: Lucas Stach Cc: Nikita Yushchenko Cc: Lee Jones Cc: Greg Kroah-Hartman Cc: Pavel Machek Cc: Andy Shevchenko Cc: Johan Hovold Cc: Sebastian Reichel Acked-by: Rob Herring Reviewed-by: Sebastian Reichel Reviewed-by: Guenter Roeck Signed-off-by: Andrey Smirnov --- drivers/tty/serdev/core.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/tty/serdev/core.c b/drivers/tty/serdev/core.c index 1bef39828ca7..34050b439c1f 100644 --- a/drivers/tty/serdev/core.c +++ b/drivers/tty/serdev/core.c @@ -268,8 +268,8 @@ static int serdev_drv_probe(struct device *dev) static int serdev_drv_remove(struct device *dev) { const struct serdev_device_driver *sdrv = to_serdev_device_driver(dev->driver); - - sdrv->remove(to_serdev_device(dev)); + if (sdrv->remove) + sdrv->remove(to_serdev_device(dev)); return 0; } -- 2.14.3