From patchwork Mon Mar 1 16:10:45 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: 390081 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,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, 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 BBBF7C433E0 for ; Mon, 1 Mar 2021 17:03:54 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 92B5C65135 for ; Mon, 1 Mar 2021 17:03:54 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235914AbhCARDp (ORCPT ); Mon, 1 Mar 2021 12:03:45 -0500 Received: from mail.kernel.org ([198.145.29.99]:59164 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S236266AbhCAQ6K (ORCPT ); Mon, 1 Mar 2021 11:58:10 -0500 Received: by mail.kernel.org (Postfix) with ESMTPSA id 8277964F56; Mon, 1 Mar 2021 16:36:45 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1614616606; bh=3M0jd727EZrJt6Mej086pr9TOogq2S9wLhEjBjIHrG8=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=Ni+s8z/si3hniV6Ri/QolCDLzCf0txrjpvublRGb1+YVWUadf7j7I6ReyIO4jGn8/ IVXP8gGxMWLk9TWsMWj3CynZIqpJn2kI+GJbPJ8ACYYknrl3pL9qSRRTkESENH8uDq jFUpQRagEX0IWMLY8u96Cur3NPnfIK8PeUxYFMEI= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Christophe JAILLET , Marcel Holtmann , Sasha Levin Subject: [PATCH 4.19 025/247] Bluetooth: btqcomsmd: Fix a resource leak in error handling paths in the probe function Date: Mon, 1 Mar 2021 17:10:45 +0100 Message-Id: <20210301161032.926097781@linuxfoundation.org> X-Mailer: git-send-email 2.30.1 In-Reply-To: <20210301161031.684018251@linuxfoundation.org> References: <20210301161031.684018251@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Christophe JAILLET [ Upstream commit 9a39a927be01d89e53f04304ab99a8761e08910d ] Some resource should be released in the error handling path of the probe function, as already done in the remove function. The remove function was fixed in commit 5052de8deff5 ("soc: qcom: smd: Transition client drivers from smd to rpmsg") Fixes: 1511cc750c3d ("Bluetooth: Introduce Qualcomm WCNSS SMD based HCI driver") Signed-off-by: Christophe JAILLET Signed-off-by: Marcel Holtmann Signed-off-by: Sasha Levin --- drivers/bluetooth/btqcomsmd.c | 27 +++++++++++++++++++-------- 1 file changed, 19 insertions(+), 8 deletions(-) diff --git a/drivers/bluetooth/btqcomsmd.c b/drivers/bluetooth/btqcomsmd.c index 7df3eed1ef5e9..874172aa8e417 100644 --- a/drivers/bluetooth/btqcomsmd.c +++ b/drivers/bluetooth/btqcomsmd.c @@ -166,8 +166,10 @@ static int btqcomsmd_probe(struct platform_device *pdev) btq->cmd_channel = qcom_wcnss_open_channel(wcnss, "APPS_RIVA_BT_CMD", btqcomsmd_cmd_callback, btq); - if (IS_ERR(btq->cmd_channel)) - return PTR_ERR(btq->cmd_channel); + if (IS_ERR(btq->cmd_channel)) { + ret = PTR_ERR(btq->cmd_channel); + goto destroy_acl_channel; + } /* The local-bd-address property is usually injected by the * bootloader which has access to the allocated BD address. @@ -179,8 +181,10 @@ static int btqcomsmd_probe(struct platform_device *pdev) } hdev = hci_alloc_dev(); - if (!hdev) - return -ENOMEM; + if (!hdev) { + ret = -ENOMEM; + goto destroy_cmd_channel; + } hci_set_drvdata(hdev, btq); btq->hdev = hdev; @@ -194,14 +198,21 @@ static int btqcomsmd_probe(struct platform_device *pdev) hdev->set_bdaddr = qca_set_bdaddr_rome; ret = hci_register_dev(hdev); - if (ret < 0) { - hci_free_dev(hdev); - return ret; - } + if (ret < 0) + goto hci_free_dev; platform_set_drvdata(pdev, btq); return 0; + +hci_free_dev: + hci_free_dev(hdev); +destroy_cmd_channel: + rpmsg_destroy_ept(btq->cmd_channel); +destroy_acl_channel: + rpmsg_destroy_ept(btq->acl_channel); + + return ret; } static int btqcomsmd_remove(struct platform_device *pdev)