From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758205AbdAJXhI (ORCPT ); Tue, 10 Jan 2017 18:37:08 -0500 Received: from bh-25.webhostbox.net ([208.91.199.152]:51011 "EHLO bh-25.webhostbox.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1758135AbdAJXhE (ORCPT ); Tue, 10 Jan 2017 18:37:04 -0500 From: Guenter Roeck To: Wim Van Sebroeck Cc: linux-watchdog@vger.kernel.org, linux-kernel@vger.kernel.org, Guenter Roeck , Support Opensource Subject: [PATCH 13/62] watchdog: da9062_wdt: Convert to use device managed functions Date: Tue, 10 Jan 2017 15:34:30 -0800 Message-Id: <1484091325-9199-14-git-send-email-linux@roeck-us.net> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1484091325-9199-1-git-send-email-linux@roeck-us.net> References: <1484091325-9199-1-git-send-email-linux@roeck-us.net> X-Authenticated_sender: guenter@roeck-us.net X-OutGoing-Spam-Status: No, score=-1.0 X-AntiAbuse: This header was added to track abuse, please include it with any abuse report X-AntiAbuse: Primary Hostname - bh-25.webhostbox.net X-AntiAbuse: Original Domain - vger.kernel.org X-AntiAbuse: Originator/Caller UID/GID - [47 12] / [47 12] X-AntiAbuse: Sender Address Domain - roeck-us.net X-Get-Message-Sender-Via: bh-25.webhostbox.net: authenticated_id: guenter@roeck-us.net X-Authenticated-Sender: bh-25.webhostbox.net: guenter@roeck-us.net X-Source: X-Source-Args: X-Source-Dir: Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Use device managed functions to simplify error handling, reduce source code size, improve readability, and reduce the likelyhood of bugs. The conversion was done automatically with coccinelle using the following semantic patches. The semantic patches and the scripts used to generate this commit log are available at https://github.com/groeck/coccinelle-patches - Replace 'val = e; return val;' with 'return e;' - Drop assignments to otherwise unused variables - Drop remove function - Drop dev_set_drvdata() - Use devm_watchdog_register_driver() to register watchdog device Cc: Support Opensource Signed-off-by: Guenter Roeck --- drivers/watchdog/da9062_wdt.c | 18 ++---------------- 1 file changed, 2 insertions(+), 16 deletions(-) diff --git a/drivers/watchdog/da9062_wdt.c b/drivers/watchdog/da9062_wdt.c index a02cee6820a1..9083d3d922b0 100644 --- a/drivers/watchdog/da9062_wdt.c +++ b/drivers/watchdog/da9062_wdt.c @@ -220,9 +220,8 @@ static int da9062_wdt_probe(struct platform_device *pdev) wdt->wdtdev.parent = &pdev->dev; watchdog_set_drvdata(&wdt->wdtdev, wdt); - dev_set_drvdata(&pdev->dev, wdt); - ret = watchdog_register_device(&wdt->wdtdev); + ret = devm_watchdog_register_device(&pdev->dev, &wdt->wdtdev); if (ret < 0) { dev_err(wdt->hw->dev, "watchdog registration failed (%d)\n", ret); @@ -231,24 +230,11 @@ static int da9062_wdt_probe(struct platform_device *pdev) da9062_set_window_start(wdt); - ret = da9062_wdt_ping(&wdt->wdtdev); - if (ret < 0) - watchdog_unregister_device(&wdt->wdtdev); - - return ret; -} - -static int da9062_wdt_remove(struct platform_device *pdev) -{ - struct da9062_watchdog *wdt = dev_get_drvdata(&pdev->dev); - - watchdog_unregister_device(&wdt->wdtdev); - return 0; + return da9062_wdt_ping(&wdt->wdtdev); } static struct platform_driver da9062_wdt_driver = { .probe = da9062_wdt_probe, - .remove = da9062_wdt_remove, .driver = { .name = "da9062-watchdog", .of_match_table = da9062_compatible_id_table, -- 2.7.4