This is a note to let you know that I've just added the patch titled
tracing: Check return value of tracing_init_dentry()
to the 3.0-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
tracing-check-return-value-of-tracing_init_dentry.patch
and it can be found in the queue-3.0 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From ed6f1c996bfe4b6e520cf7a74b51cd6988d84420 Mon Sep 17 00:00:00 2001
From: Namhyung Kim <namhyung.kim@xxxxxxx>
Date: Wed, 10 Apr 2013 09:18:12 +0900
Subject: tracing: Check return value of tracing_init_dentry()
From: Namhyung Kim <namhyung.kim@xxxxxxx>
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@xxxxxxxxxx
Signed-off-by: Namhyung Kim <namhyung@xxxxxxxxxx>
Cc: Frederic Weisbecker <fweisbec@xxxxxxxxx>
Cc: Namhyung Kim <namhyung.kim@xxxxxxx>
Signed-off-by: Steven Rostedt <rostedt@xxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
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
@@ -4360,6 +4360,8 @@ static __init int tracer_init_debugfs(vo
trace_access_lock_init();
d_tracer = tracing_init_dentry();
+ if (!d_tracer)
+ return 0;
trace_create_file("tracing_enabled", 0644, d_tracer,
&global_trace, &tracing_ctrl_fops);
--- a/kernel/trace/trace_stack.c
+++ b/kernel/trace/trace_stack.c
@@ -420,6 +420,8 @@ 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)
Patches currently in stable-queue which might be from namhyung.kim@xxxxxxx are
queue-3.0/tracing-fix-off-by-one-on-allocating-stat-pages.patch
queue-3.0/tracing-reset-ftrace_graph_filter_enabled-if-count-is-zero.patch
queue-3.0/tracing-check-return-value-of-tracing_init_dentry.patch
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