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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 9B304C433FE for ; Mon, 7 Mar 2022 09:25:25 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S236926AbiCGJ0R (ORCPT ); Mon, 7 Mar 2022 04:26:17 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:50298 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S236653AbiCGJWi (ORCPT ); Mon, 7 Mar 2022 04:22:38 -0500 Received: from ams.source.kernel.org (ams.source.kernel.org [145.40.68.75]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 4D130527ED; Mon, 7 Mar 2022 01:20:48 -0800 (PST) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ams.source.kernel.org (Postfix) with ESMTPS id E5711B810BD; Mon, 7 Mar 2022 09:20:47 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 486BDC340E9; Mon, 7 Mar 2022 09:20:46 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1646644846; bh=rEQmAFSM5skYf2Cxsh8HavJvc5jurQZGsLq/sl+SbUI=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=ywHUzAkR6YGwueealA0ulPMGXFpn7Cu2qbuQX+WbvZk0ih8QsnbVzytysOOKBIolm E5K2Wpong+ve89DDN1pTF7SVFEyk4bUtZ1gIP/swKgNr3+YIHFexLUzQJgpU0j2gxA IXarKaOaWXeiMg9i1wGi9NPFDllrJo5YHh+lrr9E= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Alan Stern , Hangyu Hua Subject: [PATCH 4.9 09/32] usb: gadget: dont release an existing dev->buf Date: Mon, 7 Mar 2022 10:18:35 +0100 Message-Id: <20220307091634.707872973@linuxfoundation.org> X-Mailer: git-send-email 2.35.1 In-Reply-To: <20220307091634.434478485@linuxfoundation.org> References: <20220307091634.434478485@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: Hangyu Hua commit 89f3594d0de58e8a57d92d497dea9fee3d4b9cda upstream. dev->buf does not need to be released if it already exists before executing dev_config. Acked-by: Alan Stern Signed-off-by: Hangyu Hua Link: https://lore.kernel.org/r/20211231172138.7993-2-hbh25y@gmail.com Signed-off-by: Greg Kroah-Hartman --- drivers/usb/gadget/legacy/inode.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) --- a/drivers/usb/gadget/legacy/inode.c +++ b/drivers/usb/gadget/legacy/inode.c @@ -1833,8 +1833,9 @@ dev_config (struct file *fd, const char spin_lock_irq (&dev->lock); value = -EINVAL; if (dev->buf) { + spin_unlock_irq(&dev->lock); kfree(kbuf); - goto fail; + return value; } dev->buf = kbuf;