From patchwork Tue Jan 5 09:29:08 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Greg KH X-Patchwork-Id: 357440 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=-18.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID, DKIM_VALID_AU, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER, INCLUDES_PATCH, MAILING_LIST_MULTI, SPF_HELO_NONE, SPF_PASS, USER_AGENT_GIT autolearn=ham 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 4BB10C433E6 for ; Tue, 5 Jan 2021 09:29:50 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 175D620756 for ; Tue, 5 Jan 2021 09:29:50 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727881AbhAEJ3e (ORCPT ); Tue, 5 Jan 2021 04:29:34 -0500 Received: from mail.kernel.org ([198.145.29.99]:49192 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728310AbhAEJ32 (ORCPT ); Tue, 5 Jan 2021 04:29:28 -0500 Received: by mail.kernel.org (Postfix) with ESMTPSA id 3546E22A83; Tue, 5 Jan 2021 09:28:30 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1609838910; bh=HStfKwrmpAr5P2MqB/ZHorfFw3JQjsPXE9k4Orej4Mc=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=b9YX0npMntiPGsU+sdlZ+Cu5oynR60G7ffOTLsAan34AF3bDD0bSlo6I741gvfOCY b/O8zHTBaZGyhWG22hMw43BbnQcPwwsL5dPZkVOdpXHzZM0D9w3x7NjNYZ8GlLkp2N TjF2avmT/JjtymiytF5Wwilx4qrzCrO59Q7HMwL8= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Dinghao Liu , Alexandre Belloni , Sasha Levin Subject: [PATCH 4.19 22/29] rtc: sun6i: Fix memleak in sun6i_rtc_clk_init Date: Tue, 5 Jan 2021 10:29:08 +0100 Message-Id: <20210105090821.395352321@linuxfoundation.org> X-Mailer: git-send-email 2.30.0 In-Reply-To: <20210105090818.518271884@linuxfoundation.org> References: <20210105090818.518271884@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Dinghao Liu [ Upstream commit 28d211919e422f58c1e6c900e5810eee4f1ce4c8 ] When clk_hw_register_fixed_rate_with_accuracy() fails, clk_data should be freed. It's the same for the subsequent two error paths, but we should also unregister the already registered clocks in them. Signed-off-by: Dinghao Liu Signed-off-by: Alexandre Belloni Link: https://lore.kernel.org/r/20201020061226.6572-1-dinghao.liu@zju.edu.cn Signed-off-by: Sasha Levin --- drivers/rtc/rtc-sun6i.c | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-) diff --git a/drivers/rtc/rtc-sun6i.c b/drivers/rtc/rtc-sun6i.c index 2cd5a7b1a2e30..e85abe8056064 100644 --- a/drivers/rtc/rtc-sun6i.c +++ b/drivers/rtc/rtc-sun6i.c @@ -232,7 +232,7 @@ static void __init sun6i_rtc_clk_init(struct device_node *node) 300000000); if (IS_ERR(rtc->int_osc)) { pr_crit("Couldn't register the internal oscillator\n"); - return; + goto err; } parents[0] = clk_hw_get_name(rtc->int_osc); @@ -248,7 +248,7 @@ static void __init sun6i_rtc_clk_init(struct device_node *node) rtc->losc = clk_register(NULL, &rtc->hw); if (IS_ERR(rtc->losc)) { pr_crit("Couldn't register the LOSC clock\n"); - return; + goto err_register; } of_property_read_string_index(node, "clock-output-names", 1, @@ -259,7 +259,7 @@ static void __init sun6i_rtc_clk_init(struct device_node *node) &rtc->lock); if (IS_ERR(rtc->ext_losc)) { pr_crit("Couldn't register the LOSC external gate\n"); - return; + goto err_register; } clk_data->num = 2; @@ -268,6 +268,8 @@ static void __init sun6i_rtc_clk_init(struct device_node *node) of_clk_add_hw_provider(node, of_clk_hw_onecell_get, clk_data); return; +err_register: + clk_hw_unregister_fixed_rate(rtc->int_osc); err: kfree(clk_data); }