From patchwork Mon Mar 22 12:28:43 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Greg Kroah-Hartman X-Patchwork-Id: 406642 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=-19.0 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER, INCLUDES_PATCH, MAILING_LIST_MULTI, SPF_HELO_NONE, SPF_PASS, URIBL_BLOCKED, 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 1264CC433E6 for ; Mon, 22 Mar 2021 12:53:13 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id DF140619B0 for ; Mon, 22 Mar 2021 12:53:12 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232326AbhCVMvp (ORCPT ); Mon, 22 Mar 2021 08:51:45 -0400 Received: from mail.kernel.org ([198.145.29.99]:42460 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230221AbhCVMtX (ORCPT ); Mon, 22 Mar 2021 08:49:23 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id 5E869619D3; Mon, 22 Mar 2021 12:45:08 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1616417108; bh=tPetY16AiQmg8h1ZYslYI+vPL7h0XaE/AWhM9p3MhSU=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=kNW0W6uRkVkWf43UweEueQk2WOJa87mtHRsMLb/CnJ6rK0GmLm6TXEFMOhpDaNQfp zo/VqhOM8+8wdxQa7rpE+28c8ItHeHu7/gaC/JrL0mkTDxo/lUnSfk3XgHxS74vOpe vFQbyZ1uvBQyWFNl7R6WBt5Vvo1r74fsR7Lrhw8M= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Dinghao Liu , Linus Walleij , Stable@vger.kernel.org, Jonathan Cameron Subject: [PATCH 4.19 29/43] iio: gyro: mpu3050: Fix error handling in mpu3050_trigger_handler Date: Mon, 22 Mar 2021 13:28:43 +0100 Message-Id: <20210322121920.860832881@linuxfoundation.org> X-Mailer: git-send-email 2.31.0 In-Reply-To: <20210322121919.936671417@linuxfoundation.org> References: <20210322121919.936671417@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 commit 6dbbbe4cfd398704b72b21c1d4a5d3807e909d60 upstream. There is one regmap_bulk_read() call in mpu3050_trigger_handler that we have caught its return value bug lack further handling. Check and terminate the execution flow just like the other three regmap_bulk_read() calls in this function. Fixes: 3904b28efb2c7 ("iio: gyro: Add driver for the MPU-3050 gyroscope") Signed-off-by: Dinghao Liu Reviewed-by: Linus Walleij Link: https://lore.kernel.org/r/20210301080421.13436-1-dinghao.liu@zju.edu.cn Cc: Signed-off-by: Jonathan Cameron Signed-off-by: Greg Kroah-Hartman --- drivers/iio/gyro/mpu3050-core.c | 2 ++ 1 file changed, 2 insertions(+) --- a/drivers/iio/gyro/mpu3050-core.c +++ b/drivers/iio/gyro/mpu3050-core.c @@ -549,6 +549,8 @@ static irqreturn_t mpu3050_trigger_handl MPU3050_FIFO_R, &fifo_values[offset], toread); + if (ret) + goto out_trigger_unlock; dev_dbg(mpu3050->dev, "%04x %04x %04x %04x %04x\n",