From patchwork Mon Mar 22 12:28:18 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: 406653 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=-19.0 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 0F38AC433E9 for ; Mon, 22 Mar 2021 12:50:04 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id C72C261A1C for ; Mon, 22 Mar 2021 12:50:03 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231355AbhCVMti (ORCPT ); Mon, 22 Mar 2021 08:49:38 -0400 Received: from mail.kernel.org ([198.145.29.99]:41972 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232731AbhCVMsG (ORCPT ); Mon, 22 Mar 2021 08:48:06 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id ED88D619E6; Mon, 22 Mar 2021 12:43:58 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1616417039; bh=WdUFp7EHK1aaSRLs1v1yIQ1MRYtqJlMTkkRzWZBV+E0=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=SGc09lT1f0eAHsck6VA/N/F0lUjlwuEjTwDrw0o6sUKqUFGW4qXEBq9axHR5uD7k+ veDhLGYAo3ZSeYlrxMU7ZtduIBTX2OSYuf6CwWgSshfo6X80AqpNwyZx8FCziEHxpK jhLaQu82WoVuiFUAszQ6rXldZiRjYadriFfHwUGw= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Dan Carpenter , "Martin K. Petersen" Subject: [PATCH 5.4 30/60] scsi: lpfc: Fix some error codes in debugfs Date: Mon, 22 Mar 2021 13:28:18 +0100 Message-Id: <20210322121923.386911932@linuxfoundation.org> X-Mailer: git-send-email 2.31.0 In-Reply-To: <20210322121922.372583154@linuxfoundation.org> References: <20210322121922.372583154@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Dan Carpenter commit 19f1bc7edf0f97186810e13a88f5b62069d89097 upstream. If copy_from_user() or kstrtoull() fail then the correct behavior is to return a negative error code. Link: https://lore.kernel.org/r/YEsbU/UxYypVrC7/@mwanda Fixes: f9bb2da11db8 ("[SCSI] lpfc 8.3.27: T10 additions for SLI4") Signed-off-by: Dan Carpenter Signed-off-by: Martin K. Petersen Signed-off-by: Greg Kroah-Hartman --- drivers/scsi/lpfc/lpfc_debugfs.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) --- a/drivers/scsi/lpfc/lpfc_debugfs.c +++ b/drivers/scsi/lpfc/lpfc_debugfs.c @@ -2217,7 +2217,7 @@ lpfc_debugfs_dif_err_write(struct file * memset(dstbuf, 0, 33); size = (nbytes < 32) ? nbytes : 32; if (copy_from_user(dstbuf, buf, size)) - return 0; + return -EFAULT; if (dent == phba->debug_InjErrLBA) { if ((buf[0] == 'o') && (buf[1] == 'f') && (buf[2] == 'f')) @@ -2225,7 +2225,7 @@ lpfc_debugfs_dif_err_write(struct file * } if ((tmp == 0) && (kstrtoull(dstbuf, 0, &tmp))) - return 0; + return -EINVAL; if (dent == phba->debug_writeGuard) phba->lpfc_injerr_wgrd_cnt = (uint32_t)tmp;