From patchwork Fri Mar 5 12:21:52 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: 394345 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, 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 65193C4361A for ; Fri, 5 Mar 2021 12:38:11 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 5494765024 for ; Fri, 5 Mar 2021 12:38:11 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232045AbhCEMhp (ORCPT ); Fri, 5 Mar 2021 07:37:45 -0500 Received: from mail.kernel.org ([198.145.29.99]:50104 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231694AbhCEMg5 (ORCPT ); Fri, 5 Mar 2021 07:36:57 -0500 Received: by mail.kernel.org (Postfix) with ESMTPSA id 9721965004; Fri, 5 Mar 2021 12:36:56 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1614947817; bh=CFfvMjZor35N/S6Fn9ztZsz8Mjywf8KBGXJhclra0ko=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=VaJrYeymNWdKx2ZU0/U/O5daInbPT0OVu5JTpgadijh5F0gP8m8EaS7Gm8prRq4RI fRaRsVGurEcxUEapu/XyCk3lwWQ+3jtynjUNYTPe57W4SefQEnCBSTpF6VtZe4ZBjX yhUDCy05WyWwQhBqmCsjvZTtl4fOwIIw8ujGhtdg= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Dinghao Liu , Sasha Levin Subject: [PATCH 4.19 21/52] staging: fwserial: Fix error handling in fwserial_create Date: Fri, 5 Mar 2021 13:21:52 +0100 Message-Id: <20210305120854.721298340@linuxfoundation.org> X-Mailer: git-send-email 2.30.1 In-Reply-To: <20210305120853.659441428@linuxfoundation.org> References: <20210305120853.659441428@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 f31559af97a0eabd467e4719253675b7dccb8a46 ] When fw_core_add_address_handler() fails, we need to destroy the port by tty_port_destroy(). Also we need to unregister the address handler by fw_core_remove_address_handler() on failure. Signed-off-by: Dinghao Liu Link: https://lore.kernel.org/r/20201221122437.10274-1-dinghao.liu@zju.edu.cn Signed-off-by: Greg Kroah-Hartman Signed-off-by: Sasha Levin --- drivers/staging/fwserial/fwserial.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/staging/fwserial/fwserial.c b/drivers/staging/fwserial/fwserial.c index fa0dd425b454..cd062628a46b 100644 --- a/drivers/staging/fwserial/fwserial.c +++ b/drivers/staging/fwserial/fwserial.c @@ -2219,6 +2219,7 @@ static int fwserial_create(struct fw_unit *unit) err = fw_core_add_address_handler(&port->rx_handler, &fw_high_memory_region); if (err) { + tty_port_destroy(&port->port); kfree(port); goto free_ports; } @@ -2301,6 +2302,7 @@ unregister_ttys: free_ports: for (--i; i >= 0; --i) { + fw_core_remove_address_handler(&serial->ports[i]->rx_handler); tty_port_destroy(&serial->ports[i]->port); kfree(serial->ports[i]); }