From patchwork Wed Mar 22 17:02:11 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: 13184360 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 5F70DC7EE23 for ; Wed, 22 Mar 2023 17:03:10 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231235AbjCVRDI (ORCPT ); Wed, 22 Mar 2023 13:03:08 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:56204 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230233AbjCVRDC (ORCPT ); Wed, 22 Mar 2023 13:03:02 -0400 Received: from metis.ext.pengutronix.de (metis.ext.pengutronix.de [IPv6:2001:67c:670:201:290:27ff:fe1d:cc33]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id E41D028D33 for ; Wed, 22 Mar 2023 10:02:42 -0700 (PDT) Received: from drehscheibe.grey.stw.pengutronix.de ([2a0a:edc0:0:c01:1d::a2]) by metis.ext.pengutronix.de with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1pf1r2-0000PK-2P; Wed, 22 Mar 2023 18:02:28 +0100 Received: from [2a0a:edc0:0:900:1d::77] (helo=ptz.office.stw.pengutronix.de) by drehscheibe.grey.stw.pengutronix.de with esmtp (Exim 4.94.2) (envelope-from ) id 1pf1r0-005xjl-GO; Wed, 22 Mar 2023 18:02:26 +0100 Received: from ukl by ptz.office.stw.pengutronix.de with local (Exim 4.94.2) (envelope-from ) id 1pf1qz-0075pK-OE; Wed, 22 Mar 2023 18:02:25 +0100 From: =?utf-8?q?Uwe_Kleine-K=C3=B6nig?= To: Thierry Reding , David Airlie , Daniel Vetter , Jonathan Hunter , Sowjanya Komatineni , Mauro Carvalho Chehab , Greg Kroah-Hartman Cc: dri-devel@lists.freedesktop.org, linux-tegra@vger.kernel.org, kernel@pengutronix.de, linux-media@vger.kernel.org, linux-staging@lists.linux.dev Subject: [PATCH 00/12] drm/tegra: Convert to platform remove callback returning void Date: Wed, 22 Mar 2023 18:02:11 +0100 Message-Id: <20230322170223.410376-1-u.kleine-koenig@pengutronix.de> X-Mailer: git-send-email 2.39.2 MIME-Version: 1.0 X-Developer-Signature: v=1; a=openpgp-sha256; l=2732; i=u.kleine-koenig@pengutronix.de; h=from:subject; bh=3rpjn0c4WSYGYyS5/RVkmvwXpGdpb7uRSmd+Uf8Qnuw=; b=owEBbQGS/pANAwAKAY+A+1h9Ev5OAcsmYgBkGzSNKtUtqhr1oZPwBWhA+JAHg0J0xGc6e+tkg x3bfFW9Uz+JATMEAAEKAB0WIQQ/gaxpOnoeWYmt/tOPgPtYfRL+TgUCZBs0jQAKCRCPgPtYfRL+ TqfzB/4/IANKSWB2KQ4zILj/AcceJ/FejtlG9MZOl1ru5nAcYKhknZGa0eUiSTgwEvfZ4WI+NYr ZqcfIAlJ4wmpoY853WXtSvrSGhWEUeEcCtMD183oxwIjcWNWhZ4tVPpomGbD4DW7DeI2uUwAB2e oCyD1/usx5pYMB5uQL+mo3G5PcKfeDR6XwVkUm1mUz/6lIVlmqnEs9HZvD/5ZC/PYECy2dGzP1n pjGYTMwEWVgCNocM7PIfq0E4ZNL0NmZCzCQ+arhDlszrTIPw6Eg78BLkh5NA1OU/yPpbSOf8A9s ykSV2508c/D4OOQQRW4cDZEd8OHkmFrS4ewJNpo+M+kOHU4a 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.ext.pengutronix.de); SAEximRunCond expanded to false X-PTX-Original-Recipient: linux-media@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org Hello, this series adapts the platform drivers below drivers/gpu/drm/tegra to use the .remove_new() callback. Compared to the traditional .remove() callback .remove_new() returns no value. This is a good thing because the driver core doesn't (and cannot) cope for errors during remove. The only effect of a non-zero return value in .remove() is that the driver core emits a warning. The device is removed anyhow and an early return from .remove() usually yields a resource leak. By changing the remove callback to return void driver authors cannot reasonably assume any more that there is some kind of cleanup later. The first two patches are simplifications that make it obvious that all remove callbacks always return zero. After that all drivers can be converted trivially. Best regards Uwe Uwe Kleine-König (12): gpu: host1x: Make host1x_client_unregister() return void drm/tegra: rgb: Make tegra_dc_rgb_remove() return void drm/tegra: dc: Convert to platform remove callback returning void drm/tegra: dpaux: Convert to platform remove callback returning void drm/tegra: dsi: Convert to platform remove callback returning void drm/tegra: gr2d: Convert to platform remove callback returning void drm/tegra: gr3d: Convert to platform remove callback returning void drm/tegra: hdmi: Convert to platform remove callback returning void drm/tegra: hub: Convert to platform remove callback returning void drm/tegra: nvdec: Convert to platform remove callback returning void drm/tegra: sor: Convert to platform remove callback returning void drm/tegra: vic: Convert to platform remove callback returning void drivers/gpu/drm/tegra/dc.c | 20 ++++---------------- drivers/gpu/drm/tegra/dc.h | 2 +- drivers/gpu/drm/tegra/dpaux.c | 6 ++---- drivers/gpu/drm/tegra/dsi.c | 14 +++----------- drivers/gpu/drm/tegra/gr2d.c | 14 +++----------- drivers/gpu/drm/tegra/gr3d.c | 14 +++----------- drivers/gpu/drm/tegra/hdmi.c | 14 +++----------- drivers/gpu/drm/tegra/hub.c | 13 +++---------- drivers/gpu/drm/tegra/nvdec.c | 14 +++----------- drivers/gpu/drm/tegra/rgb.c | 6 ++---- drivers/gpu/drm/tegra/sor.c | 14 +++----------- drivers/gpu/drm/tegra/vic.c | 14 +++----------- drivers/gpu/host1x/bus.c | 6 ++---- drivers/staging/media/tegra-video/csi.c | 8 +------- drivers/staging/media/tegra-video/vi.c | 8 +------- include/linux/host1x.h | 2 +- 16 files changed, 38 insertions(+), 131 deletions(-) base-commit: fe15c26ee26efa11741a7b632e9f23b01aca4cc6