From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756297AbXD1Npd (ORCPT ); Sat, 28 Apr 2007 09:45:33 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1756214AbXD1Nkc (ORCPT ); Sat, 28 Apr 2007 09:40:32 -0400 Received: from nz-out-0506.google.com ([64.233.162.234]:45348 "EHLO nz-out-0506.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756219AbXD1Nju (ORCPT ); Sat, 28 Apr 2007 09:39:50 -0400 DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=beta; h=received:cc:subject:in-reply-to:x-mailer:date:message-id:mime-version:content-type:reply-to:to:content-transfer-encoding:from; b=RML+Dxo1BiJzaWEafQ9gvfsv9DLUmGZNANxjtrGOAEr5IBBd1njj7L++JRfB/ibrdvU50MV5tJwhl0eWucsPwB838p97l8wPeTMmyg2vdVjve2So/6HRCzld/4qyORMONoL0xnFlySWmIhcitnJ2AzYSMlvPDQCWXhr7tkFzQ/4= Cc: Tejun Heo Subject: [PATCH 06/21] sysfs: make sysfs_put() ignore NULL sd In-Reply-To: <11777675753460-git-send-email-htejun@gmail.com> X-Mailer: git-send-email Date: Sat, 28 Apr 2007 22:39:40 +0900 Message-Id: <11777675802688-git-send-email-htejun@gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Reply-To: Tejun Heo To: gregkh@suse.de, dmitry.torokhov@gmail.com, cornelia.huck@de.ibm.com, oneukum@suse.de, rpurdie@rpsys.net, stern@rowland.harvard.edu, maneesh@in.ibm.com, akpm@linux-foundation.org, linux-kernel@vger.kernel.org, htejun@gmail.com Content-Transfer-Encoding: 7BIT From: Tejun Heo Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Make sysfs_put() ignore NULL sd instead of oopsing. Signed-off-by: Tejun Heo --- fs/sysfs/sysfs.h | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-) diff --git a/fs/sysfs/sysfs.h b/fs/sysfs/sysfs.h index 1d61027..a3ca6d6 100644 --- a/fs/sysfs/sysfs.h +++ b/fs/sysfs/sysfs.h @@ -110,7 +110,7 @@ static inline struct sysfs_dirent * sysfs_get(struct sysfs_dirent * sd) static inline void sysfs_put(struct sysfs_dirent * sd) { - if (atomic_dec_and_test(&sd->s_count)) + if (sd && atomic_dec_and_test(&sd->s_count)) release_sysfs_dirent(sd); } -- 1.5.0.3