From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752900Ab2DUJZw (ORCPT ); Sat, 21 Apr 2012 05:25:52 -0400 Received: from mail-pb0-f46.google.com ([209.85.160.46]:33437 "EHLO mail-pb0-f46.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751268Ab2DUJZv (ORCPT ); Sat, 21 Apr 2012 05:25:51 -0400 Subject: [PATCH 1/4][Trivial] lib/kobject.c: Check parameter in kobject_get_path From: yan To: greg Cc: kernel , message Date: Sat, 21 Apr 2012 17:25:42 +0800 Content-Type: text/plain; charset="UTF-8" X-Mailer: Evolution 3.0.1 (3.0.1-1.fc15) Content-Transfer-Encoding: 7bit Message-ID: <1335000350.2188.5.camel@yan> Mime-Version: 1.0 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org kobject_get_path is exported, it passes its parameter kobj to get_kobj_path_length and fill_kobj_path which are both static and called only once here. So check this parameter. Signed-off-by: Yan Hong --- lib/kobject.c | 3 +++ 1 files changed, 3 insertions(+), 0 deletions(-) diff --git a/lib/kobject.c b/lib/kobject.c index 38fcc60..56c8cb3 100644 --- a/lib/kobject.c +++ b/lib/kobject.c @@ -104,6 +104,9 @@ char *kobject_get_path(struct kobject *kobj, gfp_t gfp_mask) char *path; int len; + if (!kobj) + return NULL; + len = get_kobj_path_length(kobj); if (len == 0) return NULL; -- 1.7.5.1