From patchwork Mon Apr 12 16:00:26 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Wei Yongjun X-Patchwork-Id: 1465374 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=vger.kernel.org (client-ip=23.128.96.18; helo=vger.kernel.org; envelope-from=linux-i2c-owner@vger.kernel.org; receiver=) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by ozlabs.org (Postfix) with ESMTP id 4FJtVn1cFtz9sV5 for ; Tue, 13 Apr 2021 01:50:41 +1000 (AEST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S243147AbhDLPu5 (ORCPT ); Mon, 12 Apr 2021 11:50:57 -0400 Received: from szxga06-in.huawei.com ([45.249.212.32]:16903 "EHLO szxga06-in.huawei.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S243098AbhDLPu5 (ORCPT ); Mon, 12 Apr 2021 11:50:57 -0400 Received: from DGGEMS410-HUB.china.huawei.com (unknown [172.30.72.58]) by szxga06-in.huawei.com (SkyGuard) with ESMTP id 4FJtSZ1fZ6zjZ0w; Mon, 12 Apr 2021 23:48:46 +0800 (CST) Received: from localhost.localdomain (10.175.102.38) by DGGEMS410-HUB.china.huawei.com (10.3.19.210) with Microsoft SMTP Server id 14.3.498.0; Mon, 12 Apr 2021 23:50:26 +0800 From: Wei Yongjun To: , Chris Packham , Wolfram Sang CC: , , Hulk Robot Subject: [PATCH -next] i2c: mpc: drop release for resource allocated with devm_* Date: Mon, 12 Apr 2021 16:00:26 +0000 Message-ID: <20210412160026.194423-1-weiyongjun1@huawei.com> X-Mailer: git-send-email 2.25.1 MIME-Version: 1.0 X-Originating-IP: [10.175.102.38] X-CFilter-Loop: Reflected Precedence: bulk List-ID: X-Mailing-List: linux-i2c@vger.kernel.org It's not necessary to release resource which allocated with devm_* and those release may leads to a double free. And also remove useless irq_dispose_mapping() call since mapping not created. Fixes: 09aab7add7bf ("i2c: mpc: use device managed APIs") Reported-by: Hulk Robot Signed-off-by: Wei Yongjun Reviewed-by: Chris Packham --- drivers/i2c/busses/i2c-mpc.c | 6 ------ 1 file changed, 6 deletions(-) diff --git a/drivers/i2c/busses/i2c-mpc.c b/drivers/i2c/busses/i2c-mpc.c index 46cdb36e2f9b..6e5614acebac 100644 --- a/drivers/i2c/busses/i2c-mpc.c +++ b/drivers/i2c/busses/i2c-mpc.c @@ -759,12 +759,6 @@ static int fsl_i2c_remove(struct platform_device *op) if (i2c->clk_per) clk_disable_unprepare(i2c->clk_per); - if (i2c->irq) - free_irq(i2c->irq, i2c); - - irq_dispose_mapping(i2c->irq); - iounmap(i2c->base); - kfree(i2c); return 0; };