From patchwork Wed Apr 13 08:27:59 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: baihaowen X-Patchwork-Id: 12811710 X-Patchwork-Delegate: geert@linux-m68k.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 9D815C433F5 for ; Wed, 13 Apr 2022 08:28:05 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231335AbiDMIaY (ORCPT ); Wed, 13 Apr 2022 04:30:24 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:55288 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229958AbiDMIaY (ORCPT ); Wed, 13 Apr 2022 04:30:24 -0400 Received: from mail.meizu.com (edge05.meizu.com [157.122.146.251]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 12C73344F9; Wed, 13 Apr 2022 01:28:03 -0700 (PDT) Received: from IT-EXMB-1-125.meizu.com (172.16.1.125) by mz-mail12.meizu.com (172.16.1.108) with Microsoft SMTP Server (TLS) id 14.3.487.0; Wed, 13 Apr 2022 16:28:02 +0800 Received: from meizu.meizu.com (172.16.137.70) by IT-EXMB-1-125.meizu.com (172.16.1.125) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2308.14; Wed, 13 Apr 2022 16:28:01 +0800 From: Haowen Bai To: Geert Uytterhoeven , Michael Turquette , Stephen Boyd CC: Haowen Bai , , , Subject: [PATCH] clk: renesas: Fix memory leak of 'cpg' Date: Wed, 13 Apr 2022 16:27:59 +0800 Message-ID: <1649838479-4893-1-git-send-email-baihaowen@meizu.com> X-Mailer: git-send-email 2.7.4 MIME-Version: 1.0 X-Originating-IP: [172.16.137.70] X-ClientProxiedBy: IT-EXMB-1-126.meizu.com (172.16.1.126) To IT-EXMB-1-125.meizu.com (172.16.1.125) Precedence: bulk List-ID: X-Mailing-List: linux-renesas-soc@vger.kernel.org Fix this issue by freeing the cpg when exiting the function in the error/normal path. Signed-off-by: Haowen Bai --- drivers/clk/renesas/clk-r8a73a4.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/drivers/clk/renesas/clk-r8a73a4.c b/drivers/clk/renesas/clk-r8a73a4.c index cfed11c659d9..5a8d976f49e0 100644 --- a/drivers/clk/renesas/clk-r8a73a4.c +++ b/drivers/clk/renesas/clk-r8a73a4.c @@ -215,7 +215,7 @@ static void __init r8a73a4_cpg_clocks_init(struct device_node *np) cpg->reg = of_iomap(np, 0); if (WARN_ON(cpg->reg == NULL)) - return; + goto out_free_cpg; for (i = 0; i < num_clks; ++i) { const char *name; @@ -233,6 +233,9 @@ static void __init r8a73a4_cpg_clocks_init(struct device_node *np) } of_clk_add_provider(np, of_clk_src_onecell_get, &cpg->data); +out_free_cpg: + kfree(cpg); + kfree(clks); } CLK_OF_DECLARE(r8a73a4_cpg_clks, "renesas,r8a73a4-cpg-clocks", r8a73a4_cpg_clocks_init);