From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751589AbcBNQaR (ORCPT ); Sun, 14 Feb 2016 11:30:17 -0500 Received: from mail-pf0-f179.google.com ([209.85.192.179]:36376 "EHLO mail-pf0-f179.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751513AbcBNQaP (ORCPT ); Sun, 14 Feb 2016 11:30:15 -0500 Date: Sun, 14 Feb 2016 22:00:01 +0530 From: Sudip Mukherjee To: kernel test robot Cc: lkp@01.org, LKML , Sudip Mukherjee , 0day robot Subject: Re: [lkp] [ppdev] 138e9d20e6: kernel BUG at drivers/base/driver.c:153! Message-ID: <20160214163001.GA19855@sudip-laptop> References: <878u2nollw.fsf@yhuang-dev.intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <878u2nollw.fsf@yhuang-dev.intel.com> User-Agent: Mutt/1.5.21 (2010-09-15) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Sun, Feb 14, 2016 at 02:24:27PM +0800, kernel test robot wrote: > FYI, we noticed the below changes on > > https://github.com/0day-ci/linux Sudip-Mukherjee/ppdev-space-prohibited-between-function-name-and-parenthesis/20160212-210833 > commit 138e9d20e69c0d682f584ee1ef0151338eef7499 ("ppdev: use new parport device model") I am not able to reproduce this as I donot have all your scripts/files. Can you please check if the below patch solves this in your setup. diff --git a/drivers/parport/share.c b/drivers/parport/share.c index 3308427..176b2b6 100644 --- a/drivers/parport/share.c +++ b/drivers/parport/share.c @@ -273,6 +273,9 @@ int __parport_register_driver(struct parport_driver *drv, struct module *owner, /* using device model */ int ret; + if (!parport_bus_type.p) + return -EAGAIN; + /* initialize common driver fields */ drv->driver.name = drv->name; drv->driver.bus = &parport_bus_type; -- regards sudip