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 388F1C433EF for ; Mon, 27 Dec 2021 15:30:58 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S237652AbhL0Pa4 (ORCPT ); Mon, 27 Dec 2021 10:30:56 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:34882 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S237907AbhL0PaS (ORCPT ); Mon, 27 Dec 2021 10:30:18 -0500 Received: from dfw.source.kernel.org (dfw.source.kernel.org [IPv6:2604:1380:4641:c500::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 0655AC06137D; Mon, 27 Dec 2021 07:30:18 -0800 (PST) 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 8F65B610B1; Mon, 27 Dec 2021 15:30:17 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 73369C36AEB; Mon, 27 Dec 2021 15:30:16 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1640619017; bh=ZyuiVijWJmMxjvpxQsyz4dR2xVRaSuj9WJ1XVC/2Krc=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=WrmR6saJjsPuW/CtcQBf/vNFiY2tqSnMaFnPuHiiCeWpmdPCNaRGU50fbCEh9fsXg J5tDL30BgjoEaUEtOKVKFlGTkNnbLfUVd0eS2D0RunhuD+LF1+Ov3dXoFnj5e6i1OR aS45PVwrGkiseQtjReFo+aiilJjJ6ZYkuveQBySY= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Xiaoke Wang , Takashi Iwai Subject: [PATCH 4.14 15/29] ALSA: jack: Check the return value of kstrdup() Date: Mon, 27 Dec 2021 16:27:25 +0100 Message-Id: <20211227151318.963641179@linuxfoundation.org> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20211227151318.475251079@linuxfoundation.org> References: <20211227151318.475251079@linuxfoundation.org> User-Agent: quilt/0.66 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: Xiaoke Wang commit c01c1db1dc632edafb0dff32d40daf4f9c1a4e19 upstream. kstrdup() can return NULL, it is better to check the return value of it. Signed-off-by: Xiaoke Wang Cc: Link: https://lore.kernel.org/r/tencent_094816F3522E0DC704056C789352EBBF0606@qq.com Signed-off-by: Takashi Iwai Signed-off-by: Greg Kroah-Hartman --- sound/core/jack.c | 4 ++++ 1 file changed, 4 insertions(+) --- a/sound/core/jack.c +++ b/sound/core/jack.c @@ -234,6 +234,10 @@ int snd_jack_new(struct snd_card *card, return -ENOMEM; jack->id = kstrdup(id, GFP_KERNEL); + if (jack->id == NULL) { + kfree(jack); + return -ENOMEM; + } /* don't creat input device for phantom jack */ if (!phantom_jack) {