From patchwork Thu Aug 20 05:48:19 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dinghao Liu X-Patchwork-Id: 259564 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-12.7 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH, MAILING_LIST_MULTI, SIGNED_OFF_BY, SPF_HELO_NONE, SPF_PASS, URIBL_BLOCKED, USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 1FBA5C433E1 for ; Thu, 20 Aug 2020 05:48:54 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id EEE1C20724 for ; Thu, 20 Aug 2020 05:48:53 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727116AbgHTFsn (ORCPT ); Thu, 20 Aug 2020 01:48:43 -0400 Received: from mail.zju.edu.cn ([61.164.42.155]:37076 "EHLO zju.edu.cn" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1726819AbgHTFsl (ORCPT ); Thu, 20 Aug 2020 01:48:41 -0400 Received: from localhost.localdomain (unknown [10.192.85.18]) by mail-app4 (Coremail) with SMTP id cS_KCgDnXXmkDj5fFEIiAQ--.30373S4; Thu, 20 Aug 2020 13:48:24 +0800 (CST) From: Dinghao Liu To: dinghao.liu@zju.edu.cn, kjlu@umn.edu Cc: Ajay Singh , Claudiu Beznea , Kalle Valo , "David S. Miller" , Jakub Kicinski , Eugen Hristev , Greg Kroah-Hartman , linux-wireless@vger.kernel.org, netdev@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH] [v2] wilc1000: Fix memleak in wilc_sdio_probe Date: Thu, 20 Aug 2020 13:48:19 +0800 Message-Id: <20200820054819.23365-1-dinghao.liu@zju.edu.cn> X-Mailer: git-send-email 2.17.1 X-CM-TRANSID: cS_KCgDnXXmkDj5fFEIiAQ--.30373S4 X-Coremail-Antispam: 1UD129KBjvJXoWruFWUJF4xAw47Ww1rAr4Dtwb_yoW8JryxpF 48Gry29ay5CayDG3W7JF4fXFyFy3W3KFW2gF4v93s5urs7AF1FkF4xuFWxur1vvanrGa4x Jw4ktr4a9F18G37anT9S1TB71UUUUUUqnTZGkaVYY2UrUUUUjbIjqfuFe4nvWSU5nxnvy2 9KBjDU0xBIdaVrnRJUUUvK1xkIjI8I6I8E6xAIw20EY4v20xvaj40_Wr0E3s1l1IIY67AE w4v_Jr0_Jr4l8cAvFVAK0II2c7xJM28CjxkF64kEwVA0rcxSw2x7M28EF7xvwVC0I7IYx2 IY67AKxVWDJVCq3wA2z4x0Y4vE2Ix0cI8IcVCY1x0267AKxVW8Jr0_Cr1UM28EF7xvwVC2 z280aVAFwI0_GcCE3s1l84ACjcxK6I8E87Iv6xkF7I0E14v26rxl6s0DM2AIxVAIcxkEcV Aq07x20xvEncxIr21l5I8CrVACY4xI64kE6c02F40Ex7xfMcIj6xIIjxv20xvE14v26r10 6r15McIj6I8E87Iv67AKxVWUJVW8JwAm72CE4IkC6x0Yz7v_Jr0_Gr1lF7xvr2IYc2Ij64 vIr41lF7I21c0EjII2zVCS5cI20VAGYxC7M4IIrI8v6xkF7I0E8cxan2IY04v7MxAIw28I cxkI7VAKI48JMxAIw28IcVCjz48v1sIEY20_GFWkJr1UJwCFx2IqxVCFs4IE7xkEbVWUJV W8JwC20s026c02F40E14v26r1j6r18MI8I3I0E7480Y4vE14v26r106r1rMI8E67AF67kF 1VAFwI0_Jw0_GFylIxkGc2Ij64vIr41lIxAIcVC0I7IYx2IY67AKxVWUJVWUCwCI42IY6x IIjxv20xvEc7CjxVAFwI0_Gr0_Cr1lIxAIcVCF04k26cxKx2IYs7xG6rWUJVWrZr1UMIIF 0xvEx4A2jsIE14v26r1j6r4UMIIF0xvEx4A2jsIEc7CjxVAFwI0_Gr0_Gr1UYxBIdaVFxh VjvjDU0xZFpf9x0JUZa9-UUUUU= X-CM-SenderInfo: qrrzjiaqtzq6lmxovvfxof0/1tbiAgoSBlZdtPnBhAANsS Sender: linux-wireless-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org When devm_clk_get() returns -EPROBE_DEFER, sdio_priv should be freed just like when wilc_cfg80211_init() fails. Fixes: 8692b047e86cf ("staging: wilc1000: look for rtc_clk clock") Signed-off-by: Dinghao Liu --- Changelog: v2: - Remove 'staging' prefix in subject. --- drivers/net/wireless/microchip/wilc1000/sdio.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/drivers/net/wireless/microchip/wilc1000/sdio.c b/drivers/net/wireless/microchip/wilc1000/sdio.c index 3ece7b0b0392..351ff909ab1c 100644 --- a/drivers/net/wireless/microchip/wilc1000/sdio.c +++ b/drivers/net/wireless/microchip/wilc1000/sdio.c @@ -149,9 +149,10 @@ static int wilc_sdio_probe(struct sdio_func *func, wilc->dev = &func->dev; wilc->rtc_clk = devm_clk_get(&func->card->dev, "rtc"); - if (PTR_ERR_OR_ZERO(wilc->rtc_clk) == -EPROBE_DEFER) + if (PTR_ERR_OR_ZERO(wilc->rtc_clk) == -EPROBE_DEFER) { + kfree(sdio_priv); return -EPROBE_DEFER; - else if (!IS_ERR(wilc->rtc_clk)) + } else if (!IS_ERR(wilc->rtc_clk)) clk_prepare_enable(wilc->rtc_clk); dev_info(&func->dev, "Driver Initializing success\n");