From nobody Wed Dec 17 22:46:57 2025 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 008B8C54FB9 for ; Tue, 21 Nov 2023 09:26:50 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234071AbjKUJ0v (ORCPT ); Tue, 21 Nov 2023 04:26:51 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:41512 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234050AbjKUJ0e (ORCPT ); Tue, 21 Nov 2023 04:26:34 -0500 Received: from mailgw.kylinos.cn (mailgw.kylinos.cn [124.126.103.232]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 3AB8911C for ; Tue, 21 Nov 2023 01:25:43 -0800 (PST) X-UUID: a176167e314949b699db67b621093801-20231121 X-CID-P-RULE: Release_Ham X-CID-O-INFO: VERSION:1.1.32,REQID:09c9a1de-f804-485c-81b1-1b2739621434,IP:5,U RL:0,TC:0,Content:-5,EDM:25,RT:0,SF:-15,FILE:0,BULK:0,RULE:Release_Ham,ACT ION:release,TS:10 X-CID-INFO: VERSION:1.1.32,REQID:09c9a1de-f804-485c-81b1-1b2739621434,IP:5,URL :0,TC:0,Content:-5,EDM:25,RT:0,SF:-15,FILE:0,BULK:0,RULE:Release_Ham,ACTIO N:release,TS:10 X-CID-META: VersionHash:5f78ec9,CLOUDID:8202c7fc-4a48-46e2-b946-12f04f20af8c,B ulkID:231121172531SB7ONWCM,BulkQuantity:0,Recheck:0,SF:38|24|17|19|44|66|1 02,TC:nil,Content:0,EDM:5,IP:-2,URL:0,File:nil,Bulk:nil,QS:nil,BEC:nil,COL :0,OSI:0,OSA:0,AV:0,LES:1,SPR:NO,DKR:0,DKP:0,BRR:0,BRE:0 X-CID-BVR: 0 X-CID-BAS: 0,_,0,_ X-CID-FACTOR: TF_CID_SPAM_FSD,TF_CID_SPAM_FSI,TF_CID_SPAM_SNR,TF_CID_SPAM_FAS X-UUID: a176167e314949b699db67b621093801-20231121 X-User: chentao@kylinos.cn Received: from vt.. [(116.128.244.169)] by mailgw (envelope-from ) (Generic MTA with TLSv1.2 ECDHE-RSA-AES256-GCM-SHA384 256/256) with ESMTP id 1321209921; Tue, 21 Nov 2023 17:25:30 +0800 From: Kunwu Chan To: linux@armlinux.org.uk, shawnguo@kernel.org, s.hauer@pengutronix.de, kernel@pengutronix.de, festevam@gmail.com, linux-imx@nxp.com, angus.chen@jaguarmicro.com, arnd@arndb.de, u.kleine-koenig@pengutronix.de Cc: kunwu.chan@hotmail.com, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, Kunwu Chan Subject: [PATCH] ARM: imx: Check return value of devm_kasprintf in imx_mmdc_perf_init Date: Tue, 21 Nov 2023 17:25:26 +0800 Message-Id: <20231121092526.6708-1-chentao@kylinos.cn> X-Mailer: git-send-email 2.34.1 MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="utf-8" devm_kasprintf() returns a pointer to dynamically allocated memory which can be NULL upon failure. Ensure the allocation was successful by checking the pointer validity. Fixes: ebeb49f43c89 ("ARM: imx: Call ida_simple_remove() for ida_simple_get= ") Signed-off-by: Kunwu Chan --- arch/arm/mach-imx/mmdc.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/arch/arm/mach-imx/mmdc.c b/arch/arm/mach-imx/mmdc.c index 2157493b78a9..7c471d6a851d 100644 --- a/arch/arm/mach-imx/mmdc.c +++ b/arch/arm/mach-imx/mmdc.c @@ -501,6 +501,10 @@ static int imx_mmdc_perf_init(struct platform_device *= pdev, void __iomem *mmdc_b =20 name =3D devm_kasprintf(&pdev->dev, GFP_KERNEL, "mmdc%d", ret); + if (!name) { + ret =3D -ENOMEM; + goto pmu_free; + } =20 pmu_mmdc->mmdc_ipg_clk =3D mmdc_ipg_clk; pmu_mmdc->devtype_data =3D (struct fsl_mmdc_devtype_data *)of_id->data; --=20 2.34.1