From patchwork Mon Jun 27 06:15:29 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Miaoqian Lin X-Patchwork-Id: 12896238 X-Patchwork-Delegate: daniel.lezcano@linaro.org 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 1885BC43334 for ; Mon, 27 Jun 2022 06:15:43 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231913AbiF0GPl (ORCPT ); Mon, 27 Jun 2022 02:15:41 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:51274 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232369AbiF0GPk (ORCPT ); Mon, 27 Jun 2022 02:15:40 -0400 Received: from mail-pf1-x436.google.com (mail-pf1-x436.google.com [IPv6:2607:f8b0:4864:20::436]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id AA26D2AE8; Sun, 26 Jun 2022 23:15:39 -0700 (PDT) Received: by mail-pf1-x436.google.com with SMTP id x4so8053516pfq.2; Sun, 26 Jun 2022 23:15:39 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=m7g6umiUOwdOMCfOCryyw3MLC4pOLulgBLoXtBSgLW0=; b=LuaevszstNhWFFRYwAKoCq5sp1iYifHqTXb6Newe+keBwKV+Kubc9ReysUvW+hjzKT M3tZiFU2mrGBs+ulpYkB7m8hNn2SR20+dLgZyBrBptnssSMbKiaJRz6yBz0yYquLj5hU RW8oXC7dpNEXeaZHi6aE4xcevdT79DKRpZLyAOagde31MmIQQ5vD8fsfCm5Men9Ub+/m eBnpCW3qqTOS7EdTI4hMUdieANZhAnjv9YANuNjwnrXb0twrA9ZhToEp9jM4697XjJn7 FjFFmqNCT5FNE8fZUbiSYiC9eiLddV5X7fvPXYAG4wrBGBVOi60kR5dGD2UXaNlrzfTo vM2A== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=m7g6umiUOwdOMCfOCryyw3MLC4pOLulgBLoXtBSgLW0=; b=xTc2GLyCnP60FYPADLBE1ao2QGmAHEXXTzLX6kuFC/bURvysdXGCkGZr24ZKGOcV5y Hy+EjlF3s1CQi4huETrGDBk6eeN0eElAW0dLqny104c+RmGp+HzvfA5zSQeZeSXqClc6 NW6Rfgqoma4XxYQ/AYuF9Ecp2bBk9ns0QuFsC9arF6Z5b28oE/76MowGyxlU9w4Uw/HY xJgiLcTnLk4SQhwuUq0fGMtVf/oWrBmp2gDeW5SHeH7bbywGhrXcWpQ+Ey/rR6aE8YUr Dy088DQdb3EL8ycWWEXH8XYmlo1rwc2A+3lZ0sGTJfWJs5e04vTU5BTesadmkHxaMdBG 1AZQ== X-Gm-Message-State: AJIora8VZJrzyya8fAfk8PqSCuxpzSzaGWjlEQlsoSpRd5O6bHga4A2J sPU6WczmWxUZZ1Yu5jML9desAdmWrzJqhucM X-Google-Smtp-Source: AGRyM1sIWT9n1hmrzELvQ2YM0qCSfHEM+RUEpYxlMJPLKQYOnoVyyYyWMefV1d3YR5akrxipdN44Mw== X-Received: by 2002:a05:6a00:2402:b0:4e1:3df2:5373 with SMTP id z2-20020a056a00240200b004e13df25373mr12719859pfh.40.1656310539136; Sun, 26 Jun 2022 23:15:39 -0700 (PDT) Received: from localhost.localdomain ([202.120.234.246]) by smtp.googlemail.com with ESMTPSA id c16-20020a170902b69000b001678dcb4c5asm6247798pls.100.2022.06.26.23.15.35 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 26 Jun 2022 23:15:38 -0700 (PDT) From: Miaoqian Lin To: "Rafael J. Wysocki" , Daniel Lezcano , Amit Kucheria , Zhang Rui , Keerthy , linux-pm@vger.kernel.org, linux-kernel@vger.kernel.org Cc: linmq006@gmail.com Subject: [PATCH] thermal: k3_j72xx_bandgap: Fix memory leak in k3_j72xx_bandgap_probe Date: Mon, 27 Jun 2022 10:15:29 +0400 Message-Id: <20220627061529.42624-1-linmq006@gmail.com> X-Mailer: git-send-email 2.25.1 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-pm@vger.kernel.org ref_table is allocated in kzalloc, but it doesn't get freed in later error paths. This function only release it in normal path. Fix this by add err_free_ref_table label and goto this in some error paths. Fixes: ffcb2fc86eb7 ("thermal: k3_j72xx_bandgap: Add the bandgap driver support") Signed-off-by: Miaoqian Lin --- drivers/thermal/k3_j72xx_bandgap.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/drivers/thermal/k3_j72xx_bandgap.c b/drivers/thermal/k3_j72xx_bandgap.c index 64e323158952..ce4a62148653 100644 --- a/drivers/thermal/k3_j72xx_bandgap.c +++ b/drivers/thermal/k3_j72xx_bandgap.c @@ -433,7 +433,7 @@ static int k3_j72xx_bandgap_probe(struct platform_device *pdev) GFP_KERNEL); if (!derived_table) { ret = -ENOMEM; - goto err_alloc; + goto err_free_ref_table; } /* Workaround not needed if bit30/bit31 is set even for J721e */ @@ -483,7 +483,7 @@ static int k3_j72xx_bandgap_probe(struct platform_device *pdev) if (IS_ERR(ti_thermal)) { dev_err(bgp->dev, "thermal zone device is NULL\n"); ret = PTR_ERR(ti_thermal); - goto err_alloc; + goto err_free_ref_table; } } @@ -514,6 +514,8 @@ static int k3_j72xx_bandgap_probe(struct platform_device *pdev) return 0; +err_free_ref_table: + kfree(ref_table); err_alloc: pm_runtime_put_sync(&pdev->dev); pm_runtime_disable(&pdev->dev);