From patchwork Mon Oct 9 08:38:37 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?q?Uwe_Kleine-K=C3=B6nig?= X-Patchwork-Id: 731214 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id DAA25E95A9A for ; Mon, 9 Oct 2023 09:22:43 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1345695AbjJIJWn (ORCPT ); Mon, 9 Oct 2023 05:22:43 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:51592 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1345742AbjJIJWk (ORCPT ); Mon, 9 Oct 2023 05:22:40 -0400 Received: from metis.whiteo.stw.pengutronix.de (metis.whiteo.stw.pengutronix.de [IPv6:2a0a:edc0:2:b01:1d::104]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id D822FA3 for ; Mon, 9 Oct 2023 02:22:38 -0700 (PDT) Received: from drehscheibe.grey.stw.pengutronix.de ([2a0a:edc0:0:c01:1d::a2]) by metis.whiteo.stw.pengutronix.de with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1qpmTD-0006sV-83; Mon, 09 Oct 2023 11:22:35 +0200 Received: from [2a0a:edc0:0:900:1d::77] (helo=ptz.office.stw.pengutronix.de) by drehscheibe.grey.stw.pengutronix.de with esmtps (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.94.2) (envelope-from ) id 1qpmTC-000NWN-5W; Mon, 09 Oct 2023 11:22:34 +0200 Received: from ukl by ptz.office.stw.pengutronix.de with local (Exim 4.94.2) (envelope-from ) id 1qpmTB-00C4op-Sc; Mon, 09 Oct 2023 11:22:33 +0200 From: =?utf-8?q?Uwe_Kleine-K=C3=B6nig?= To: Linus Walleij Cc: Maxime Coquelin , Alexandre Torgue , linux-gpio@vger.kernel.org, linux-stm32@st-md-mailman.stormreply.com, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Subject: [PATCH 01/20] pinctrl: stmfx: Improve error message in .remove()'s error path Date: Mon, 9 Oct 2023 10:38:37 +0200 Message-Id: <20231009083856.222030-2-u.kleine-koenig@pengutronix.de> X-Mailer: git-send-email 2.40.1 In-Reply-To: <20231009083856.222030-1-u.kleine-koenig@pengutronix.de> References: <20231009083856.222030-1-u.kleine-koenig@pengutronix.de> MIME-Version: 1.0 X-Developer-Signature: v=1; a=openpgp-sha256; l=1448; i=u.kleine-koenig@pengutronix.de; h=from:subject; bh=oQvuwpLV6jEvG8nPX5IRlTZZ5eR2ugHk+8EMhpV4SKQ=; b=owEBbQGS/pANAwAKAY+A+1h9Ev5OAcsmYgBlI7wAB8YUxAlLBbwC7CIKjUbWm11DxuAGLQFuF PnKvZq8Ol2JATMEAAEKAB0WIQQ/gaxpOnoeWYmt/tOPgPtYfRL+TgUCZSO8AAAKCRCPgPtYfRL+ TjJjCAC4Tdc4fTfh4VtpKisfvbBZZ0D+fqAmRlGB0zNqfrv706XALbviXa7gthDeHwPd4lv8wKr Ite+awd5fMyaGbl9XHLZ5gAHQ3JEjV6lPNk8v0CuXjFzEW82fkKMEJSL1Z+1aUG3IFE70SUBZDf 2Od7RaLozqLEEOO+6oerRQDP9UycvcJGkfXOwZ5ZZYOExGr51w3ex6RuIsYMEbniwO7//3JHVdP ZQpEEZvabqVPS+mx/fuF07qQlbpItj0UzV6FspmOKyC1ZVkXk+KMLjbrCzGEcYD5CzrbaKN3daX Yvrtl6ebPOFQICKlYIpv7t5owBQhbumI9X3ZqpTeaTE879qF X-Developer-Key: i=u.kleine-koenig@pengutronix.de; a=openpgp; fpr=0D2511F322BFAB1C1580266BE2DCDD9132669BD6 X-SA-Exim-Connect-IP: 2a0a:edc0:0:c01:1d::a2 X-SA-Exim-Mail-From: ukl@pengutronix.de X-SA-Exim-Scanned: No (on metis.whiteo.stw.pengutronix.de); SAEximRunCond expanded to false X-PTX-Original-Recipient: linux-gpio@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-gpio@vger.kernel.org The driver core has no handling for errors returned by the .remove() callback. The only action on error is a dev_warn() with generic error message that the returned value is returned. Replace it by a more specific and useful message. Then returning zero is the right thing to do, the only effect is to suppress the core's warning. This prepares the driver for the conversion to .remove_new(). Signed-off-by: Uwe Kleine-König --- drivers/pinctrl/pinctrl-stmfx.c | 14 ++++++++++---- 1 file changed, 10 insertions(+), 4 deletions(-) diff --git a/drivers/pinctrl/pinctrl-stmfx.c b/drivers/pinctrl/pinctrl-stmfx.c index 0974bbf57b54..d7ab82432a52 100644 --- a/drivers/pinctrl/pinctrl-stmfx.c +++ b/drivers/pinctrl/pinctrl-stmfx.c @@ -737,11 +737,17 @@ static int stmfx_pinctrl_probe(struct platform_device *pdev) static int stmfx_pinctrl_remove(struct platform_device *pdev) { struct stmfx *stmfx = dev_get_drvdata(pdev->dev.parent); + int ret; - return stmfx_function_disable(stmfx, - STMFX_FUNC_GPIO | - STMFX_FUNC_ALTGPIO_LOW | - STMFX_FUNC_ALTGPIO_HIGH); + ret = stmfx_function_disable(stmfx, + STMFX_FUNC_GPIO | + STMFX_FUNC_ALTGPIO_LOW | + STMFX_FUNC_ALTGPIO_HIGH); + if (ret) + dev_err(&pdev->dev, "Failed to disable pins (%pe)\n", + ERR_PTR(ret)); + + return 0; } #ifdef CONFIG_PM_SLEEP