From mboxrd@z Thu Jan 1 00:00:00 1970 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 C2ACDC7EE23 for ; Mon, 15 May 2023 16:40:47 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S242602AbjEOQkr (ORCPT ); Mon, 15 May 2023 12:40:47 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:43750 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S242857AbjEOQkq (ORCPT ); Mon, 15 May 2023 12:40:46 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [139.178.84.217]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id E3B0C4220 for ; Mon, 15 May 2023 09:40:44 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id 81BA162886 for ; Mon, 15 May 2023 16:40:44 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 83E9DC433D2; Mon, 15 May 2023 16:40:43 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1684168843; bh=QX9910LUB++Si9xXuJegnAvvYo+RWexy8yjhYKVWZuE=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=zfA/HrNyWx+cpW2PeHCp702BaOtCUEHfmc/FwiIPKzh+lrd3D8e7iMmcJyg15sBmO SI9Q/SQJwVPhjMQcfKl3jgw00m3MMfKMiy9b+Yvd+qvCj545iRpbFkMv2/lALnHdXe ErDTUjFT5KTT9yjBZt635639bvdRCH5jicl/q1pQ= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Jiasheng Jiang , Hans Verkuil , Mauro Carvalho Chehab , Sasha Levin Subject: [PATCH 4.19 031/191] media: bdisp: Add missing check for create_workqueue Date: Mon, 15 May 2023 18:24:28 +0200 Message-Id: <20230515161708.313771595@linuxfoundation.org> X-Mailer: git-send-email 2.40.1 In-Reply-To: <20230515161707.203549282@linuxfoundation.org> References: <20230515161707.203549282@linuxfoundation.org> User-Agent: quilt/0.67 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Jiasheng Jiang [ Upstream commit 2371adeab717d8fe32144a84f3491a03c5838cfb ] Add the check for the return value of the create_workqueue in order to avoid NULL pointer dereference. Fixes: 28ffeebbb7bd ("[media] bdisp: 2D blitter driver using v4l2 mem2mem framework") Signed-off-by: Jiasheng Jiang Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab Signed-off-by: Sasha Levin --- drivers/media/platform/sti/bdisp/bdisp-v4l2.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/media/platform/sti/bdisp/bdisp-v4l2.c b/drivers/media/platform/sti/bdisp/bdisp-v4l2.c index 00f6e3f06dac5..7a7271f9d875a 100644 --- a/drivers/media/platform/sti/bdisp/bdisp-v4l2.c +++ b/drivers/media/platform/sti/bdisp/bdisp-v4l2.c @@ -1312,6 +1312,8 @@ static int bdisp_probe(struct platform_device *pdev) init_waitqueue_head(&bdisp->irq_queue); INIT_DELAYED_WORK(&bdisp->timeout_work, bdisp_irq_timeout); bdisp->work_queue = create_workqueue(BDISP_NAME); + if (!bdisp->work_queue) + return -ENOMEM; spin_lock_init(&bdisp->slock); mutex_init(&bdisp->lock); -- 2.39.2