From patchwork Tue Nov 7 09:18:00 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: 742159 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 14645C072A0 for ; Tue, 7 Nov 2023 09:20:41 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233864AbjKGJUl (ORCPT ); Tue, 7 Nov 2023 04:20:41 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:37390 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233830AbjKGJUc (ORCPT ); Tue, 7 Nov 2023 04:20:32 -0500 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 5884DD7E for ; Tue, 7 Nov 2023 01:20:30 -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 1r0IG4-0000TI-Df; Tue, 07 Nov 2023 10:20:28 +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 1r0IG4-007Fmj-0s; Tue, 07 Nov 2023 10:20:28 +0100 Received: from ukl by ptz.office.stw.pengutronix.de with local (Exim 4.94.2) (envelope-from ) id 1r0IG3-00ENXM-O8; Tue, 07 Nov 2023 10:20:27 +0100 From: =?utf-8?q?Uwe_Kleine-K=C3=B6nig?= To: Helge Deller Cc: Dmitry Torokhov , linux-omap@vger.kernel.org, linux-fbdev@vger.kernel.org, dri-devel@lists.freedesktop.org, kernel@pengutronix.de Subject: [PATCH 19/22] fb: omapfb/opa362: Convert to platform remove callback returning void Date: Tue, 7 Nov 2023 10:18:00 +0100 Message-ID: <20231107091740.3924258-20-u.kleine-koenig@pengutronix.de> X-Mailer: git-send-email 2.42.0.586.gbc5204569f7d.dirty In-Reply-To: <20231107091740.3924258-1-u.kleine-koenig@pengutronix.de> References: <20231107091740.3924258-1-u.kleine-koenig@pengutronix.de> MIME-Version: 1.0 X-Developer-Signature: v=1; a=openpgp-sha256; l=2042; i=u.kleine-koenig@pengutronix.de; h=from:subject; bh=y82hh1cU5X7eF1j5G9DB/De2QOkfIzaWhfPbOFdvfxQ=; b=owEBbQGS/pANAwAKAY+A+1h9Ev5OAcsmYgBlSgDKn5eqiqHmhV2l+yU0aadfm9ovQplPUV12B +iiPPJfOFaJATMEAAEKAB0WIQQ/gaxpOnoeWYmt/tOPgPtYfRL+TgUCZUoAygAKCRCPgPtYfRL+ TpB9CACPX/ZR47uYw0+a97b5xLZnqlggbhMZWkNkgDfZVRVk7XzA20Pf/vJJjdixzkHFPE0otOx LDuPe/PO7BNWgMZnL5cX/unTSU5CYSyjvDR4WXhxkfvUOy0qtbYz3x9dSHdYY3dBHM7Hziffwv6 9WAPRp2sYiZdpMyEQ7YNBQFCg2I4JAvkp7sKBech5FIg0+ca2koBfM1RrcUMrmffGdf/w/tg2vn DsjW0m3NIEa7hCGhgNhZvcb/qfvc2oP2QrAZk1F+6ylaUQ2rEIPLV1/A7XN0HpC8LXedkp8OqI/ +Lh6VRs9cvrPqQYjzKC8jIQMxa1/xiORundCPFfvY4ZGrhSi 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-omap@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-omap@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/video/fbdev/omap2/omapfb/displays/encoder-opa362.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/drivers/video/fbdev/omap2/omapfb/displays/encoder-opa362.c b/drivers/video/fbdev/omap2/omapfb/displays/encoder-opa362.c index 866d71489358..f0d3eb581166 100644 --- a/drivers/video/fbdev/omap2/omapfb/displays/encoder-opa362.c +++ b/drivers/video/fbdev/omap2/omapfb/displays/encoder-opa362.c @@ -231,7 +231,7 @@ static int opa362_probe(struct platform_device *pdev) return r; } -static int opa362_remove(struct platform_device *pdev) +static void opa362_remove(struct platform_device *pdev) { struct panel_drv_data *ddata = platform_get_drvdata(pdev); struct omap_dss_device *dssdev = &ddata->dssdev; @@ -248,8 +248,6 @@ static int opa362_remove(struct platform_device *pdev) opa362_disconnect(dssdev, dssdev->dst); omap_dss_put_device(in); - - return 0; } static const struct of_device_id opa362_of_match[] = { @@ -260,7 +258,7 @@ MODULE_DEVICE_TABLE(of, opa362_of_match); static struct platform_driver opa362_driver = { .probe = opa362_probe, - .remove = opa362_remove, + .remove_new = opa362_remove, .driver = { .name = "amplifier-opa362", .of_match_table = opa362_of_match,