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,USER_AGENT_GIT autolearn=unavailable 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 2BD76C433E0 for ; Mon, 28 Dec 2020 16:20:06 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 092E12084D for ; Mon, 28 Dec 2020 16:20:06 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1732406AbgL1NOI (ORCPT ); Mon, 28 Dec 2020 08:14:08 -0500 Received: from mail.kernel.org ([198.145.29.99]:41908 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1732369AbgL1NOC (ORCPT ); Mon, 28 Dec 2020 08:14:02 -0500 Received: by mail.kernel.org (Postfix) with ESMTPSA id 60127206ED; Mon, 28 Dec 2020 13:13:46 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1609161227; bh=1CtIWeQZtjeYx/Ib0qH12yADYI9cX/yHqJu1k+mDgnE=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=t9p/pJVPM1JxyaiQLIKQS8LMfjUJ3C0LXobTV4PahQBr9T0gVZ7VqeY8chlcxALxz 7RM1N4rpa/kijVRYFOB6DVS9y9ar5VQ4IV7v/FHNOAWimC/o+5UDDfVBOxOH4gkX// Q0zJBojtvLY7ddM540eMNK7jwVOjqBJQa0bUYcKg= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Hulk Robot , Qinglang Miao , Mike Snitzer , Sasha Levin Subject: [PATCH 4.14 137/242] dm ioctl: fix error return code in target_message Date: Mon, 28 Dec 2020 13:49:02 +0100 Message-Id: <20201228124911.451473001@linuxfoundation.org> X-Mailer: git-send-email 2.29.2 In-Reply-To: <20201228124904.654293249@linuxfoundation.org> References: <20201228124904.654293249@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: Qinglang Miao [ Upstream commit 4d7659bfbe277a43399a4a2d90fca141e70f29e1 ] Fix to return a negative error code from the error handling case instead of 0, as done elsewhere in this function. Fixes: 2ca4c92f58f9 ("dm ioctl: prevent empty message") Reported-by: Hulk Robot Signed-off-by: Qinglang Miao Signed-off-by: Mike Snitzer Signed-off-by: Sasha Levin --- drivers/md/dm-ioctl.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/md/dm-ioctl.c b/drivers/md/dm-ioctl.c index ca948155191ac..469453e106d14 100644 --- a/drivers/md/dm-ioctl.c +++ b/drivers/md/dm-ioctl.c @@ -1574,6 +1574,7 @@ static int target_message(struct file *filp, struct dm_ioctl *param, size_t para if (!argc) { DMWARN("Empty message received."); + r = -EINVAL; goto out_argv; } -- 2.27.0