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=-9.0 required=3.0 tests=FREEMAIL_FORGED_FROMDOMAIN, FREEMAIL_FROM,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,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 AD93EC282C4 for ; Tue, 12 Feb 2019 06:03:52 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 7668F217FA for ; Tue, 12 Feb 2019 06:03:52 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727197AbfBLGDu (ORCPT ); Tue, 12 Feb 2019 01:03:50 -0500 Received: from mout.gmx.net ([212.227.15.19]:49157 "EHLO mout.gmx.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726003AbfBLGDu (ORCPT ); Tue, 12 Feb 2019 01:03:50 -0500 Received: from localhost.localdomain ([218.18.229.179]) by mail.gmx.com (mrgmx002 [212.227.17.184]) with ESMTPSA (Nemesis) id 0LtrKX-1h3eHb16SD-011BkY; Tue, 12 Feb 2019 07:03:43 +0100 From: Chengguang Xu To: tomas.winkler@intel.com, arnd@arndb.de, gregkh@linuxfoundation.org Cc: linux-kernel@vger.kernel.org, Chengguang Xu Subject: [PATCH] mei: expand minor range when registering chrdev region Date: Tue, 12 Feb 2019 14:02:52 +0800 Message-Id: <20190212060252.8948-1-cgxu519@gmx.com> X-Mailer: git-send-email 2.20.1 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Provags-ID: V03:K1:AFEpkk746hQ1g1EnyQqapKfE5WRcSJSYixM6Mildc9CVtEJe778 JfueeGaSJ8Bv7m9ddB2P7fvWQeuNcdZtq94BZUin540+YB959ReZYdL6kHkPzYtEcEosrJR eR12dKL1P48noxxnxsmfUUzLn9QFGBrfCtMpoTvp8/HoQQFs918TXXZ+rw0HenO/a8OKwJH LW5J2YOxyGWTtZ2Xo4B8Q== X-UI-Out-Filterresults: notjunk:1;V03:K0:tA3JTLIhUes=:NwPOKHTQhRodzWs9+SOHXg mtSxPS4enii3HtSLX9Uis6UWoELOJCGlHUywnAcVLY7L+P6UDTUqlKJ/6qOw9HdfyozKetOQP ZNyjkvmAFYC+t1njvzRjZ3RT4XWpA1b5xtbywVW2zO7S7XR8cydQxxj7B9AzTFmeg8Kybieg1 SQNXcdpzO3orGRaOHSj3bTxE/5IiYNQiyq8bIaM+DpSGcA+IAJ1eEpyycgC1pDFLO3kPo3a8S G16ziEqrl0PCU4rGMJ9iO2hqLFnYMBTuMtwCxv3Ec/Gs5mWuJUJ9h9jghF7rFF7ZRxbQs7yx9 4rfuqPxerxJv9paa/wWl+YFE6TkaQS27aMiDDDvLLR9PgN7vfhWPn6LmcetdojyqNIju/WaNp vDODz5HUmdr3WH5mb4jPL8lA7pVWxtGMwe9uJ/EOsy1G41SO5v953jr8Ib9pgrjsUeoOlmCMg mkW+Qn5dAzhdyzI297Hwuk1dFYYKjl64Ybg7cYhLn9MDjfvu4/RPCu90i2YxwScqJ84iJbgTw 49Q7luKS1iMNblIMs2u/JnPvBRZMAOy5iIWcLyi7z6sECJKQ9qGH7yFeHEEopz04b6zaFjSEx ts+7+pjQRvGRbv95R7irfi+K4lPb6rRbK5q07qfD5J+xKYXy6/A75sV2FeeuyfZCnn0WmMaR9 JMrQCO4Lyr+8EDrvqlrTOSzRE9ocAzX/cFL7YjuxXJhI2t+/YSlMQZFssiQifxSSDJX55lT64 YWfXqlNLAlRKahbivmQPUf9+rMJ/DF7pJorlXh7RK17hJGvEwbh5vc27Fy7XjLzI2onkVcA2H V0nRWRX982QUeRRTPT4Y1nwPZwiJPBV05P2bUqnULtukX2oP8vpUs4rfLjC7xU/FHfmeLy70L HovxADEHf3EFCDv2zMBtbuj2l0Lt5WXRrBfor0YrORYVCsYpaoR29c4xfouuLT Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Actually, total amount of available minor number for a single major is MINORMARK + 1. So expand minor range when registering chrdev region. Signed-off-by: Chengguang Xu --- drivers/misc/mei/main.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/misc/mei/main.c b/drivers/misc/mei/main.c index 87281b3695e6..3df54f1e1a8b 100644 --- a/drivers/misc/mei/main.c +++ b/drivers/misc/mei/main.c @@ -869,7 +869,7 @@ static const struct file_operations mei_fops = { static struct class *mei_class; static dev_t mei_devt; -#define MEI_MAX_DEVS MINORMASK +#define MEI_MAX_DEVS (MINORMASK + 1) static DEFINE_MUTEX(mei_minor_lock); static DEFINE_IDR(mei_idr); -- 2.20.1