From patchwork Wed Feb 19 12:46:45 2025 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Haoxiang Li X-Patchwork-Id: 13983132 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 gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (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 BEF40C021B2 for ; Wed, 19 Feb 2025 23:48:51 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 0331C10E8B3; Wed, 19 Feb 2025 23:48:39 +0000 (UTC) Authentication-Results: gabe.freedesktop.org; dkim=pass (1024-bit key; unprotected) header.d=163.com header.i=@163.com header.b="d+yRAW2T"; dkim-atps=neutral X-Greylist: delayed 939 seconds by postgrey-1.36 at gabe; Wed, 19 Feb 2025 13:03:07 UTC Received: from m16.mail.163.com (m16.mail.163.com [220.197.31.3]) by gabe.freedesktop.org (Postfix) with ESMTP id 7CCD410E2B2; Wed, 19 Feb 2025 13:03:07 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=163.com; s=s110527; h=From:Subject:Date:Message-Id:MIME-Version; bh=7De9c 1YYCDKrVXvirdDhHSniVE6NBJ2sqrVR0/tlexk=; b=d+yRAW2TdSfG9MGeXyQek buund3bfZIiU4BQO1YmjvKC1z3AqMId0+XhGpnpC9+JSBorjTTvW4UH81E9mKnVk 1IYLAZKGGcTiY0OkzrigCTFeUOjz/Dkr89AoiA/6aelRyUu0v2N39p6cwFS8UIwW tMkzmak1vCPjUnHum52ih8= Received: from icess-ProLiant-DL380-Gen10.. (unknown []) by gzga-smtp-mtada-g0-4 (Coremail) with SMTP id _____wDnz8e30rVnzkamNA--.60716S4; Wed, 19 Feb 2025 20:46:48 +0800 (CST) From: Haoxiang Li To: jani.nikula@linux.intel.com, rodrigo.vivi@intel.com, lucas.demarchi@intel.com, thomas.hellstrom@linux.intel.com, maarten.lankhorst@linux.intel.com, mripard@kernel.org, tzimmermann@suse.de, airlied@gmail.com, simona@ffwll.ch Cc: intel-gfx@lists.freedesktop.org, intel-xe@lists.freedesktop.org, dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org, Haoxiang Li , stable@vger.kernel.org Subject: [PATCH] drm/xe/display: Add check for alloc_ordered_workqueue() Date: Wed, 19 Feb 2025 20:46:45 +0800 Message-Id: <20250219124645.2631945-1-haoxiang_li2024@163.com> X-Mailer: git-send-email 2.25.1 MIME-Version: 1.0 X-CM-TRANSID: _____wDnz8e30rVnzkamNA--.60716S4 X-Coremail-Antispam: 1Uf129KBjvdXoW7Jr18CFWfCryxtFWxZw18Xwb_yoWDJrbEkr 17ZrnxWry0k3Wvqw1UZr4furySvr1Yvan7X3yS9a43try7Wa1ftry8t345Xr4UZFy2yFZr u3W8WanrZws7WjkaLaAFLSUrUUUUjb8apTn2vfkv8UJUUUU8Yxn0WfASr-VFAUDa7-sFnT 9fnUUvcSsGvfC2KfnxnUUI43ZEXa7sRJpndUUUUUU== X-Originating-IP: [183.174.60.14] X-CM-SenderInfo: xkdr5xpdqjszblsqjki6rwjhhfrp/xtbB0hX4bme1wrXnDQACsc X-Mailman-Approved-At: Wed, 19 Feb 2025 23:48:37 +0000 X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" Add check for the return value of alloc_ordered_workqueue() in xe_display_create() to catch potential exception. Fixes: 44e694958b95 ("drm/xe/display: Implement display support") Cc: stable@vger.kernel.org Signed-off-by: Haoxiang Li --- drivers/gpu/drm/xe/display/xe_display.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/gpu/drm/xe/display/xe_display.c b/drivers/gpu/drm/xe/display/xe_display.c index b3921dbc52ff..b5d6ae05d936 100644 --- a/drivers/gpu/drm/xe/display/xe_display.c +++ b/drivers/gpu/drm/xe/display/xe_display.c @@ -97,6 +97,8 @@ int xe_display_create(struct xe_device *xe) spin_lock_init(&xe->display.fb_tracking.lock); xe->display.hotplug.dp_wq = alloc_ordered_workqueue("xe-dp", 0); + if (!xe->display.hotplug.dp_wq) + return -ENOMEM; return drmm_add_action_or_reset(&xe->drm, display_destroy, NULL); }