From patchwork Fri Nov 10 15:29:54 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: 13452462 Received: from lindbergh.monkeyblade.net (lindbergh.monkeyblade.net [23.128.96.19]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 8019E1CA81 for ; Fri, 10 Nov 2023 15:30:55 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=none 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 169773A8B4 for ; Fri, 10 Nov 2023 07:30:54 -0800 (PST) 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 1r1TT4-0006KG-Fi; Fri, 10 Nov 2023 16:30:46 +0100 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 1r1TT3-0083KH-6A; Fri, 10 Nov 2023 16:30:45 +0100 Received: from ukl by ptz.office.stw.pengutronix.de with local (Exim 4.94.2) (envelope-from ) id 1r1TT2-00GnwT-TA; Fri, 10 Nov 2023 16:30:44 +0100 From: =?utf-8?q?Uwe_Kleine-K=C3=B6nig?= To: Greg Kroah-Hartman , Jiri Slaby Cc: Andy Gross , Bjorn Andersson , Konrad Dybcio , linux-arm-msm@vger.kernel.org, kernel@pengutronix.de, linux-serial@vger.kernel.org Subject: [PATCH 26/52] serial: msm: Convert to platform remove callback returning void Date: Fri, 10 Nov 2023 16:29:54 +0100 Message-ID: <20231110152927.70601-27-u.kleine-koenig@pengutronix.de> X-Mailer: git-send-email 2.42.0.586.gbc5204569f7d.dirty In-Reply-To: <20231110152927.70601-1-u.kleine-koenig@pengutronix.de> References: <20231110152927.70601-1-u.kleine-koenig@pengutronix.de> Precedence: bulk X-Mailing-List: linux-arm-msm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Developer-Signature: v=1; a=openpgp-sha256; l=1801; i=u.kleine-koenig@pengutronix.de; h=from:subject; bh=LJgsO25Eg8wbVQzDwqFJ8bN3QTncxxhr1VMEufgIMHA=; b=owEBbQGS/pANAwAKAY+A+1h9Ev5OAcsmYgBlTkx1HE0iNJjsPpzlmXxolLFIaCVZE0CjFTeP7 MihzWtfOwOJATMEAAEKAB0WIQQ/gaxpOnoeWYmt/tOPgPtYfRL+TgUCZU5MdQAKCRCPgPtYfRL+ TiZoB/9r0qVGebSbtTyBYd6LsFJLk7x0aIYEXHi2Gbc9FlSJeON/gmWEtaUmfY2FVfwEk5cetvm fSTkUkogVaC4j5mly2roUfnxIAhMdrm6vy2/p+ommTBTnRu8HCNSVv7+vrayw+lT7xPm2uIV9gl grei+DjQw2HAZbL4Ow1CBSDc07aOrz/bXHt+gIy5KlyxAbXQR0iO2gkv8i63ThbSiNNOXolCo4J wI0f1wFttN8pZsP1VzMLA/GcGnpqEzA/c3CXVOSHAW7s4i0k2/FjxPsqcOEM/We042Z+T+1UR8b j9lPaIm5aLpM//NH3IgQfTNZy95e706/P1yCsYZozUcK5kqb 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-arm-msm@vger.kernel.org The .remove() callback for a platform driver returns an int which makes many driver authors wrongly assume it's possible to do error handling by returning an error code. However the value returned is ignored (apart from emitting a warning) and this typically results in resource leaks. To improve here there is a quest to make the remove callback return void. In the first step of this quest all drivers are converted to .remove_new(), which already returns void. Eventually after all drivers are converted, .remove_new() will be renamed to .remove(). Trivially convert this driver from always returning zero in the remove callback to the void returning variant. Signed-off-by: Uwe Kleine-König --- drivers/tty/serial/msm_serial.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/drivers/tty/serial/msm_serial.c b/drivers/tty/serial/msm_serial.c index 597264b546fd..7fc8f0b16aef 100644 --- a/drivers/tty/serial/msm_serial.c +++ b/drivers/tty/serial/msm_serial.c @@ -1843,13 +1843,11 @@ static int msm_serial_probe(struct platform_device *pdev) return uart_add_one_port(&msm_uart_driver, port); } -static int msm_serial_remove(struct platform_device *pdev) +static void msm_serial_remove(struct platform_device *pdev) { struct uart_port *port = platform_get_drvdata(pdev); uart_remove_one_port(&msm_uart_driver, port); - - return 0; } static const struct of_device_id msm_match_table[] = { @@ -1882,7 +1880,7 @@ static const struct dev_pm_ops msm_serial_dev_pm_ops = { }; static struct platform_driver msm_platform_driver = { - .remove = msm_serial_remove, + .remove_new = msm_serial_remove, .probe = msm_serial_probe, .driver = { .name = "msm_serial",