From patchwork Mon Jan 23 10:05:56 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Thomas Zimmermann X-Patchwork-Id: 13111909 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 A2E52C05027 for ; Mon, 23 Jan 2023 10:16:39 +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=izHIEqWuLWu+EZSeCz/1u/FvN392/riq9mDPBUzd2BQ=; b=1lvFyeLi0jSRTl UzhwrAJz11P1rSjUKxRf6tRWBcBqTbYHnX2T00TW82G/qZo6RfLkf2TRgMWgMiaJqRyOB7Ujdkizv Grc3+Y6GWqle4v7fuw4asXTWbwefp3V1RwzZPHHgHhq9NBpo52iLn1hEEfJsI+ImDJN9lT9E7EDJS CjOGVGb8PpxX43/ygqTED/6t9s2AynGA7HOXsf1mfMkqku1Kh1Qobyl7wjMY3ixbzpLpS8z9BMC+N D9eCm9E5iNsTylJvWtyiGF5LTdKKOW4fG+KB49Dyc5gWWmJFJ2T7fmSXQCDA2VFMx6ec05c8wZQAk 7oz56mHN9o7/seBqr/XQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1pJtrN-00GjWb-RG; Mon, 23 Jan 2023 10:15:30 +0000 Received: from smtp-out1.suse.de ([2001:67c:2178:6::1c]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1pJtiK-00Gfrl-9f for linux-arm-kernel@lists.infradead.org; Mon, 23 Jan 2023 10:06:14 +0000 Received: from imap2.suse-dmz.suse.de (imap2.suse-dmz.suse.de [192.168.254.74]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (P-521) server-digest SHA512) (No client certificate requested) by smtp-out1.suse.de (Postfix) with ESMTPS id 3A40034212; Mon, 23 Jan 2023 10:06:05 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_rsa; t=1674468365; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=afz1DQI5FyPuRzZBzvdALN3LMLNkwLW65z09Mk9nstc=; b=SxfnKyJXVol4gZcNqz7fEh/XPseQJyy+W0m2lyLzfpH34h2GthouCTdstUX3cW6KFtf4c9 r1UeLUhBv5NDX8/N/zOGi40ZqMu9JOxYHNqyDxY7ccUXTvAZojy3jQ6IXQIkgfi3SGlWXq 98Eyre5jD+l51FS8LKVRxSrGG16Qk5o= DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_ed25519; t=1674468365; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=afz1DQI5FyPuRzZBzvdALN3LMLNkwLW65z09Mk9nstc=; b=pnmn2yW4wpQHnx6JMnrvEYydHCE6deLLwj7Twp2SI1ZteGUQxSPShXQcI2+XsK0HHpaGHJ FIvWj+yymJMV0jCQ== Received: from imap2.suse-dmz.suse.de (imap2.suse-dmz.suse.de [192.168.254.74]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (P-521) server-digest SHA512) (No client certificate requested) by imap2.suse-dmz.suse.de (Postfix) with ESMTPS id E94C7139FE; Mon, 23 Jan 2023 10:06:04 +0000 (UTC) Received: from dovecot-director2.suse.de ([192.168.254.65]) by imap2.suse-dmz.suse.de with ESMTPSA id yJMCOAxczmO+DwAAMHmgww (envelope-from ); Mon, 23 Jan 2023 10:06:04 +0000 From: Thomas Zimmermann To: airlied@gmail.com, daniel@ffwll.ch, maarten.lankhorst@linux.intel.com, mripard@kernel.org, javierm@redhat.com Cc: dri-devel@lists.freedesktop.org, linux-arm-kernel@lists.infradead.org, linux-samsung-soc@vger.kernel.org, intel-gfx@lists.freedesktop.org, linux-arm-msm@vger.kernel.org, freedreno@lists.freedesktop.org, amd-gfx@lists.freedesktop.org, linux-tegra@vger.kernel.org, Thomas Zimmermann Subject: [PATCH 07/10] drm/fbdev-generic: Minimize hotplug error handling Date: Mon, 23 Jan 2023 11:05:56 +0100 Message-Id: <20230123100559.12351-8-tzimmermann@suse.de> X-Mailer: git-send-email 2.39.0 In-Reply-To: <20230123100559.12351-1-tzimmermann@suse.de> References: <20230123100559.12351-1-tzimmermann@suse.de> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230123_020608_567513_0C3F878C X-CRM114-Status: GOOD ( 10.36 ) X-BeenThere: linux-arm-kernel@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-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Call drm_fb_helper_init() in the generic-fbdev hotplug helper to revert the effects of drm_fb_helper_init(). No full cleanup is required. Signed-off-by: Thomas Zimmermann --- drivers/gpu/drm/drm_fbdev_generic.c | 14 +++++--------- 1 file changed, 5 insertions(+), 9 deletions(-) diff --git a/drivers/gpu/drm/drm_fbdev_generic.c b/drivers/gpu/drm/drm_fbdev_generic.c index 6ae014040df3..dd8be5e0f271 100644 --- a/drivers/gpu/drm/drm_fbdev_generic.c +++ b/drivers/gpu/drm/drm_fbdev_generic.c @@ -387,25 +387,21 @@ static int drm_fbdev_client_hotplug(struct drm_client_dev *client) ret = drm_fb_helper_init(dev, fb_helper); if (ret) - goto err; + goto err_drm_err; if (!drm_drv_uses_atomic_modeset(dev)) drm_helper_disable_unused_functions(dev); ret = drm_fb_helper_initial_config(fb_helper); if (ret) - goto err_cleanup; + goto err_drm_fb_helper_fini; return 0; -err_cleanup: - drm_fbdev_cleanup(fb_helper); -err: - fb_helper->dev = NULL; - fb_helper->info = NULL; - +err_drm_fb_helper_fini: + drm_fb_helper_fini(fb_helper); +err_drm_err: drm_err(dev, "fbdev: Failed to setup generic emulation (ret=%d)\n", ret); - return ret; }