From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758831Ab3EFVIV (ORCPT ); Mon, 6 May 2013 17:08:21 -0400 Received: from mail.linuxfoundation.org ([140.211.169.12]:59115 "EHLO mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1757596Ab3EFUqY (ORCPT ); Mon, 6 May 2013 16:46:24 -0400 From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Namhyung Kim , Frederic Weisbecker , Namhyung Kim , Steven Rostedt Subject: [ 044/115] tracing: Check return value of tracing_init_dentry() Date: Mon, 6 May 2013 13:44:40 -0700 Message-Id: <20130506203100.086934408@linuxfoundation.org> X-Mailer: git-send-email 1.8.3.rc0.20.gb99dd2e In-Reply-To: <20130506203055.537199268@linuxfoundation.org> References: <20130506203055.537199268@linuxfoundation.org> User-Agent: quilt/0.60-5.1.1 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 3.9-stable review patch. If anyone has any objections, please let me know. ------------------ From: Namhyung Kim commit ed6f1c996bfe4b6e520cf7a74b51cd6988d84420 upstream. Check return value and bail out if it's NULL. Link: http://lkml.kernel.org/r/1365553093-10180-2-git-send-email-namhyung@kernel.org Signed-off-by: Namhyung Kim Cc: Frederic Weisbecker Cc: Namhyung Kim Signed-off-by: Steven Rostedt Signed-off-by: Greg Kroah-Hartman --- kernel/trace/trace.c | 2 ++ kernel/trace/trace_stack.c | 2 ++ kernel/trace/trace_stat.c | 2 ++ 3 files changed, 6 insertions(+) --- a/kernel/trace/trace.c +++ b/kernel/trace/trace.c @@ -5028,6 +5028,8 @@ static __init int tracer_init_debugfs(vo trace_access_lock_init(); d_tracer = tracing_init_dentry(); + if (!d_tracer) + return 0; trace_create_file("trace_options", 0644, d_tracer, NULL, &tracing_iter_fops); --- a/kernel/trace/trace_stack.c +++ b/kernel/trace/trace_stack.c @@ -431,6 +431,8 @@ static __init int stack_trace_init(void) struct dentry *d_tracer; d_tracer = tracing_init_dentry(); + if (!d_tracer) + return 0; trace_create_file("stack_max_size", 0644, d_tracer, &max_stack_size, &stack_max_size_fops); --- a/kernel/trace/trace_stat.c +++ b/kernel/trace/trace_stat.c @@ -307,6 +307,8 @@ static int tracing_stat_init(void) struct dentry *d_tracing; d_tracing = tracing_init_dentry(); + if (!d_tracing) + return 0; stat_dir = debugfs_create_dir("trace_stat", d_tracing); if (!stat_dir)