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| author | Namhyung Kim <namhyung.kim@lge.com> | 2013-04-10 09:18:12 +0900 |
|---|---|---|
| committer | Steven Rostedt <rostedt@goodmis.org> | 2013-04-12 23:02:32 -0400 |
| commit | ed6f1c996bfe4b6e520cf7a74b51cd6988d84420 (patch) | |
| tree | 1d9da2d98d5e94cd9b6606cbf8f721925c53164e | |
| parent | f1943977e6648c1d42a78eda4ba4429a2bc0b786 (diff) | |
| download | olio-linux-3.10-ed6f1c996bfe4b6e520cf7a74b51cd6988d84420.tar.xz olio-linux-3.10-ed6f1c996bfe4b6e520cf7a74b51cd6988d84420.zip | |
tracing: Check return value of tracing_init_dentry()
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
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Namhyung Kim <namhyung.kim@lge.com>
Cc: stable@vger.kernel.org
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
| -rw-r--r-- | kernel/trace/trace.c | 2 | ||||
| -rw-r--r-- | kernel/trace/trace_stack.c | 2 | ||||
| -rw-r--r-- | kernel/trace/trace_stat.c | 2 |
3 files changed, 6 insertions, 0 deletions
diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c index 07860b99575..72970793b40 100644 --- a/kernel/trace/trace.c +++ b/kernel/trace/trace.c @@ -5953,6 +5953,8 @@ static __init int tracer_init_debugfs(void) trace_access_lock_init(); d_tracer = tracing_init_dentry(); + if (!d_tracer) + return 0; init_tracer_debugfs(&global_trace, d_tracer); diff --git a/kernel/trace/trace_stack.c b/kernel/trace/trace_stack.c index aab277b67fa..8c3f37e2dc4 100644 --- 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); diff --git a/kernel/trace/trace_stat.c b/kernel/trace/trace_stat.c index 96cffb269e7..847f88a6194 100644 --- 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) |