From patchwork Thu Nov 2 16:56:54 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: 13444027 X-Patchwork-Delegate: neil.armstrong@linaro.org 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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id EE04EC4167B for ; Thu, 2 Nov 2023 16:57:50 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-ID:Date:Subject:Cc:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=yExevNA2PItKinGxZjPKOAleV/PlRvu0yYs/NPd6bIc=; b=HbZd6dPk0xwa6g mBPkhxAjFkdZcxi6inlg6v1KMd63ctxm0AxzqoidATKKcgPBWrF1u1wBz0zs3UmfdKShz7uO1VCsk eSb1NV+fow0NiaG4BJ+ZhCJPjugIFFBYDmy0VK/93oaJQEAJ0ppDqXUd9q4lxf6750bA93LaIXmbK eeoH1VGpgafYAo7TAYiHh7fLkDHcf8NRTxCnBIIceg8hQqoNzASlM03q1yZaWevT4DgAfTa4syiZR NLZ8Dy3sKuTYSSUlqG3jrZmsMAZoviCQR9+yioAXJ07d4wc4tBsGCz+qKoWWEy83xzf0fYYcHRmS7 ZfqRZnMm1HmD4mzGnNyQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1qyb0W-009vOk-0V; Thu, 02 Nov 2023 16:57:24 +0000 Received: from metis.whiteo.stw.pengutronix.de ([2a0a:edc0:2:b01:1d::104]) by bombadil.infradead.org with esmtps (Exim 4.96 #2 (Red Hat Linux)) id 1qyb0S-009vMo-0r for linux-amlogic@lists.infradead.org; Thu, 02 Nov 2023 16:57:21 +0000 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 1qyb0I-000381-H9; Thu, 02 Nov 2023 17:57:10 +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 1qyb0I-0067FW-0y; Thu, 02 Nov 2023 17:57:10 +0100 Received: from ukl by ptz.office.stw.pengutronix.de with local (Exim 4.94.2) (envelope-from ) id 1qyb0H-00Bjcl-Ny; Thu, 02 Nov 2023 17:57:09 +0100 From: =?utf-8?q?Uwe_Kleine-K=C3=B6nig?= To: Neil Armstrong , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , David Airlie , Daniel Vetter , Kevin Hilman Cc: Jerome Brunet , Martin Blumenstingl , dri-devel@lists.freedesktop.org, linux-amlogic@lists.infradead.org, linux-arm-kernel@lists.infradead.org, kernel@pengutronix.de Subject: [PATCH v3 13/16] drm/meson: Convert to platform remove callback returning void Date: Thu, 2 Nov 2023 17:56:54 +0100 Message-ID: <20231102165640.3307820-31-u.kleine-koenig@pengutronix.de> X-Mailer: git-send-email 2.42.0 In-Reply-To: <20231102165640.3307820-18-u.kleine-koenig@pengutronix.de> References: <20231102165640.3307820-18-u.kleine-koenig@pengutronix.de> MIME-Version: 1.0 X-Developer-Signature: v=1; a=openpgp-sha256; l=1919; i=u.kleine-koenig@pengutronix.de; h=from:subject; bh=fTCgeG8D3r24mPhaDqET6D9T7D0QbFJghvuSAARj8M8=; b=owEBbQGS/pANAwAKAY+A+1h9Ev5OAcsmYgBlQ9TYIjO1+70sN6Yiz3+MVdT0lSg9thUez+jFX Ej2s/15KOaJATMEAAEKAB0WIQQ/gaxpOnoeWYmt/tOPgPtYfRL+TgUCZUPU2AAKCRCPgPtYfRL+ TncICAC38V4qAo1DtPCUBId7a9LgQZcf0pNV2nIpntNvOOt+ubXsT2Y09QjrDFA0X4Cz1QtyJZB pgYpezDiy2iYB2juJxDdc7/gwUeoshFsr3V44ie43vPnXM5spMmziRYW+d37hdgbOgK04QV3fwD 6q+N1nlPiw8BDLeALE0rtutcMZDFViAd83WB4Hqlj2ieBhricJ5cf8HTPCDt/c25AU/slDu3urX czDiq5w0QsECfQP2bL3esSs5Cli1q8weyamxNNuTZCDITYn4gojvsBwPRMU1UUBfTH8Ocs//M+P oZR3udcV3M8GpNFkSi6ofcmu3kD8SuIIgrt5lcpVKIpX37m9 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-amlogic@lists.infradead.org X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20231102_095720_301094_4B09A864 X-CRM114-Status: GOOD ( 15.75 ) X-BeenThere: linux-amlogic@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-amlogic" Errors-To: linux-amlogic-bounces+linux-amlogic=archiver.kernel.org@lists.infradead.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/gpu/drm/meson/meson_dw_mipi_dsi.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/drivers/gpu/drm/meson/meson_dw_mipi_dsi.c b/drivers/gpu/drm/meson/meson_dw_mipi_dsi.c index e5fe4e994f43..a6bc1bdb3d0d 100644 --- a/drivers/gpu/drm/meson/meson_dw_mipi_dsi.c +++ b/drivers/gpu/drm/meson/meson_dw_mipi_dsi.c @@ -323,13 +323,11 @@ static int meson_dw_mipi_dsi_probe(struct platform_device *pdev) return 0; } -static int meson_dw_mipi_dsi_remove(struct platform_device *pdev) +static void meson_dw_mipi_dsi_remove(struct platform_device *pdev) { struct meson_dw_mipi_dsi *mipi_dsi = platform_get_drvdata(pdev); dw_mipi_dsi_remove(mipi_dsi->dmd); - - return 0; } static const struct of_device_id meson_dw_mipi_dsi_of_table[] = { @@ -340,7 +338,7 @@ MODULE_DEVICE_TABLE(of, meson_dw_mipi_dsi_of_table); static struct platform_driver meson_dw_mipi_dsi_platform_driver = { .probe = meson_dw_mipi_dsi_probe, - .remove = meson_dw_mipi_dsi_remove, + .remove_new = meson_dw_mipi_dsi_remove, .driver = { .name = DRIVER_NAME, .of_match_table = meson_dw_mipi_dsi_of_table,