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Commit ed6f1c99 authored by Namhyung Kim's avatar Namhyung Kim Committed by Steven Rostedt
Browse files

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: default avatarNamhyung Kim <namhyung@kernel.org>
Signed-off-by: default avatarSteven Rostedt <rostedt@goodmis.org>
parent f1943977

kernel/trace/trace.c

+2 −0
Original line number Diff line number Diff line
@@ -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);

kernel/trace/trace_stack.c

+2 −0
Original line number Diff line number Diff line
@@ -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);

kernel/trace/trace_stat.c

+2 −0
Original line number Diff line number Diff line
@@ -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)