From patchwork Tue Oct 31 10:30:10 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Hangyu Hua X-Patchwork-Id: 13441393 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 C0C89C4167B for ; Tue, 31 Oct 2023 10:30:39 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234980AbjJaKaj (ORCPT ); Tue, 31 Oct 2023 06:30:39 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:36838 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234937AbjJaKac (ORCPT ); Tue, 31 Oct 2023 06:30:32 -0400 Received: from mail-pf1-x444.google.com (mail-pf1-x444.google.com [IPv6:2607:f8b0:4864:20::444]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 86D0FF1; Tue, 31 Oct 2023 03:30:30 -0700 (PDT) Received: by mail-pf1-x444.google.com with SMTP id d2e1a72fcca58-6bd20c30831so1307547b3a.1; Tue, 31 Oct 2023 03:30:30 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1698748230; x=1699353030; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:from:to:cc:subject:date:message-id:reply-to; bh=qj37DKOBvq5iOgjYOiYoCEkc6gwIDyLnQahEd9fN5Z4=; b=nVsBGaFaWmff5DB9pQQqPsr0PrnjNcZv1Rscixe6fnQ7uzfNJPhWSQY2RHUFwOLGnU aBMI02zCuT/cRAbaoW0sDELai/9udefXLGwxGET7baH8xX8H3SQXU9uco171l90+HJdX JePKkbsYiTAw4eoE+ZBs+LtOgL0/uSP1W9L4ABlgMrnLnkPSA3hVL289rzftd3Wz5t/D 3sNiTUnI7y8H5D/UfFbQcZsgTJrQWseQch/D3eROJX2uSAORdMNhV1INpLIp8KJEIPn5 suIdLke+Q5azmi3AyrhqXjriJ/quKLFqRT3cUEoOrvtM8ix/fnk/lQ7gDKWo94fHC1z3 Vlpg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1698748230; x=1699353030; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to; bh=qj37DKOBvq5iOgjYOiYoCEkc6gwIDyLnQahEd9fN5Z4=; b=UHg9OplCYAz7IKR3esi4eMRF3SOx1lTIfRN6d13ata/jD19oHcFzRcrvOlud/3Ciuw g1rAPknZ1+BrdaByCm7CVz6m32nNExKuOK/n2w3dGeGVwzhMCZuiEdSRBfBw4JCuAv+2 Iz7AhoRngRDkSIhJdNtJVFb11ZbLAl27nm2fP5jb5zEAI1xrKJzPRFaNLz0vX7e0R1lU oqggwdlDhF8St+XZoNJgq0G0w2W5OmBx6tELfWs4O3LraZ7BAVANjwXDjw0Eqh9mrTIO MyrlU1bA2pjDgwdxoKNbv33+Y+RMKkZK1AJi6K4frN0YQAsx1Ue1ecs/B3FO3h75gdBR +1rQ== X-Gm-Message-State: AOJu0Yyv5K8xbPd+/86pEAlWwh/mWweUN4PdizELT/Uj+E/mBWDibiwo RSj4Ti05frQuc3QWebdfG/U= X-Google-Smtp-Source: AGHT+IF+v0D8hOV3q7PGSZAlaU8mLwN5Iy+fxqSjmYlV72q6DrmM8ADNRUW0qbH2RRoO0jBO877UeA== X-Received: by 2002:a05:6a00:309b:b0:6b9:7d5c:bb58 with SMTP id bh27-20020a056a00309b00b006b97d5cbb58mr11846810pfb.0.1698748229950; Tue, 31 Oct 2023 03:30:29 -0700 (PDT) Received: from hbh25y.mshome.net (059149129201.ctinets.com. [59.149.129.201]) by smtp.gmail.com with ESMTPSA id l1-20020a056a00140100b0069029a3196dsm956395pfu.184.2023.10.31.03.30.23 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 31 Oct 2023 03:30:29 -0700 (PDT) From: Hangyu Hua To: kristo@kernel.org, mturquette@baylibre.com, sboyd@kernel.org, tony@atomide.com, andriy.shevchenko@linux.intel.com, claudiu.beznea@microchip.com, robh@kernel.org, dario.binacchi@amarulasolutions.com Cc: linux-omap@vger.kernel.org, linux-clk@vger.kernel.org, linux-kernel@vger.kernel.org, Hangyu Hua Subject: [PATCH v3] ti: fix possible memory leak in _ti_omap4_clkctrl_setup() Date: Tue, 31 Oct 2023 18:30:10 +0800 Message-Id: <20231031103010.23792-1-hbh25y@gmail.com> X-Mailer: git-send-email 2.34.1 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-clk@vger.kernel.org kstrndup() and kstrdup_and_replace() in clkctrl_get_name() can perform dynamic memory allocation. So clkctrl_name needs to be freed when provider->clkdm_name is NULL. Fixes: bd46cd0b802d ("clk: ti: clkctrl: check return value of kasprintf()") Signed-off-by: Hangyu Hua --- v2 and v3: fix commit info. drivers/clk/ti/clkctrl.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/clk/ti/clkctrl.c b/drivers/clk/ti/clkctrl.c index 607e34d8e289..cb4aa8a45bb2 100644 --- a/drivers/clk/ti/clkctrl.c +++ b/drivers/clk/ti/clkctrl.c @@ -591,6 +591,7 @@ static void __init _ti_omap4_clkctrl_setup(struct device_node *node) provider->clkdm_name = kasprintf(GFP_KERNEL, "%s_clkdm", clkctrl_name); if (!provider->clkdm_name) { + kfree(clkctrl_name); kfree(provider); return; }