From patchwork Wed Apr 10 16:40:27 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Martin Pitt X-Patchwork-Id: 235422 X-Patchwork-Delegate: davem@davemloft.net Return-Path: X-Original-To: patchwork-incoming@ozlabs.org Delivered-To: patchwork-incoming@ozlabs.org Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 98A242C00D5 for ; Thu, 11 Apr 2013 02:40:51 +1000 (EST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S965094Ab3DJQka (ORCPT ); Wed, 10 Apr 2013 12:40:30 -0400 Received: from www.piware.de ([213.9.93.70]:48590 "EHLO www.piware.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S965067Ab3DJQk3 (ORCPT ); Wed, 10 Apr 2013 12:40:29 -0400 Received: from localhost.localdomain (p57A846C1.dip.t-dialin.net [87.168.70.193]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client CN "Martin Pitt (ThinkPad)", Issuer "piware CA" (verified OK)) by www.piware.de (Postfix) with ESMTPS id F105AFB8B3; Wed, 10 Apr 2013 18:32:11 +0200 (CEST) Received: by localhost.localdomain (Postfix, from userid 1000) id 4FD0661C14; Wed, 10 Apr 2013 18:40:27 +0200 (CEST) Date: Wed, 10 Apr 2013 18:40:27 +0200 From: Martin Pitt To: "John W. Linville" , linux-wireless@vger.kernel.org Cc: netdev@vger.kernel.org, linux-kernel@vger.kernel.org, Johannes Berg Subject: mac80211_hwsim: Check return value of driver_register Message-ID: <20130410164027.GB2884@piware.de> MIME-Version: 1.0 Content-Disposition: inline User-Agent: Mutt/1.5.21 (2010-09-15) Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org If driver_register() fails, properly exit with the same error code. Signed-off-by: Martin Pitt --- drivers/net/wireless/mac80211_hwsim.c | 7 ++++++- 1 files changed, 6 insertions(+), 1 deletions(-) diff --git a/drivers/net/wireless/mac80211_hwsim.c b/drivers/net/wireless/mac80211_hwsim.c index 57361c3..a2224b7 100644 --- a/drivers/net/wireless/mac80211_hwsim.c +++ b/drivers/net/wireless/mac80211_hwsim.c @@ -2183,7 +2183,12 @@ static int __init init_mac80211_hwsim(void) if (IS_ERR(hwsim_class)) return PTR_ERR(hwsim_class); - driver_register(&mac80211_hwsim_driver); + err = driver_register(&mac80211_hwsim_driver); + if (err != 0) { + printk(KERN_DEBUG + "mac80211_hwsim: driver_register failed (%d)\n", err); + return err; + } memset(addr, 0, ETH_ALEN); addr[0] = 0x02;