From mboxrd@z Thu Jan 1 00:00:00 1970 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,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 D1D16C433DB for ; Mon, 11 Jan 2021 14:07:03 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id A569A22472 for ; Mon, 11 Jan 2021 14:07:03 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2388474AbhAKOGv (ORCPT ); Mon, 11 Jan 2021 09:06:51 -0500 Received: from mail.kernel.org ([198.145.29.99]:50800 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1730050AbhAKNDx (ORCPT ); Mon, 11 Jan 2021 08:03:53 -0500 Received: by mail.kernel.org (Postfix) with ESMTPSA id A1E8622A84; Mon, 11 Jan 2021 13:02:46 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1610370167; bh=kh8om6E6jSAFpiup9ADzLFT0TZ34oVD0TeHHHfcehng=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=tXYPD8V8R0hEiURe5/YUuZzmpdfunHWbnRFY+54qs5+Sq0OlmPrxmGemdi3W3ZzS5 2yQfEUt8TQejL70jAK6xJFvtUeFlM4LVdrQXDENAJQPmzLuYezAEzlpdew4JqDuVJN zrIWFOJfYM7G78yJCbr+jaYqfh4iCeXjvamFTLRo= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Peter Chen , Zqiang Subject: [PATCH 4.4 28/38] usb: gadget: function: printer: Fix a memory leak for interface descriptor Date: Mon, 11 Jan 2021 14:01:00 +0100 Message-Id: <20210111130033.814032159@linuxfoundation.org> X-Mailer: git-send-email 2.30.0 In-Reply-To: <20210111130032.469630231@linuxfoundation.org> References: <20210111130032.469630231@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Zqiang commit 2cc332e4ee4febcbb685e2962ad323fe4b3b750a upstream. When printer driver is loaded, the printer_func_bind function is called, in this function, the interface descriptor be allocated memory, if after that, the error occurred, the interface descriptor memory need to be free. Reviewed-by: Peter Chen Cc: Signed-off-by: Zqiang Link: https://lore.kernel.org/r/20201210020148.6691-1-qiang.zhang@windriver.com Signed-off-by: Greg Kroah-Hartman --- drivers/usb/gadget/function/f_printer.c | 1 + 1 file changed, 1 insertion(+) --- a/drivers/usb/gadget/function/f_printer.c +++ b/drivers/usb/gadget/function/f_printer.c @@ -1116,6 +1116,7 @@ fail_tx_reqs: printer_req_free(dev->in_ep, req); } + usb_free_all_descriptors(f); return ret; }