From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757442AbaJIQC3 (ORCPT ); Thu, 9 Oct 2014 12:02:29 -0400 Received: from mail-pa0-f65.google.com ([209.85.220.65]:62739 "EHLO mail-pa0-f65.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752706AbaJIQCV (ORCPT ); Thu, 9 Oct 2014 12:02:21 -0400 Message-ID: <5436B188.3070608@gmail.com> Date: Fri, 10 Oct 2014 02:32:16 +1030 From: Daniel Cotton User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.9; rv:31.0) Gecko/20100101 Thunderbird/31.0 MIME-Version: 1.0 To: axboe@fb.com CC: linux-kernel@vger.kernel.org Subject: [PATCH] mtip32xx: Fix incorrect warning Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Prevent mtip32xx block driver from showing a warning at load time ("Error creating debugfs parent") when debugfs is not included in the kernel. If debugfs is included, show the error code. Fixes bug 55831 in the Bugzilla. Signed-off-by: Daniel Cotton --- drivers/block/mtip32xx/mtip32xx.c | 11 +++++++---- 1 file changed, 7 insertions(+), 4 deletions(-) diff --git a/drivers/block/mtip32xx/mtip32xx.c b/drivers/block/mtip32xx/mtip32xx.c index 5c8e7fe..1124c61 100644 --- a/drivers/block/mtip32xx/mtip32xx.c +++ b/drivers/block/mtip32xx/mtip32xx.c @@ -4686,16 +4686,19 @@ static int __init mtip_init(void) mtip_major = error; dfs_parent = debugfs_create_dir("rssd", NULL); - if (IS_ERR_OR_NULL(dfs_parent)) { - pr_warn("Error creating debugfs parent\n"); + if (IS_ERR_OR_NULL(dfs_parent) && PTR_ERR(dfs_parent) != -ENODEV) { + pr_warn("Error creating debugfs parent, error code: %ld\n", + PTR_ERR(dfs_parent)); dfs_parent = NULL; } if (dfs_parent) { dfs_device_status = debugfs_create_file("device_status", S_IRUGO, dfs_parent, NULL, &mtip_device_status_fops); - if (IS_ERR_OR_NULL(dfs_device_status)) { - pr_err("Error creating device_status node\n"); + if (IS_ERR_OR_NULL(dfs_device_status) && + PTR_ERR(dfs_device_status) != -ENODEV) { + pr_err("Error creating device_status node, error code: %ld\n", + PTR_ERR(dfs_device_status)); dfs_device_status = NULL; } }