Commit c8a6694f authored by Namhyung Kim's avatar Namhyung Kim Committed by Greg Kroah-Hartman

tracing: Check return value of tracing_init_dentry()

commit ed6f1c99 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.orgSigned-off-by: default avatarNamhyung Kim <namhyung@kernel.org>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Namhyung Kim <namhyung.kim@lge.com>
Signed-off-by: default avatarSteven Rostedt <rostedt@goodmis.org>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 7c6d8df0
...@@ -5028,6 +5028,8 @@ static __init int tracer_init_debugfs(void) ...@@ -5028,6 +5028,8 @@ static __init int tracer_init_debugfs(void)
trace_access_lock_init(); trace_access_lock_init();
d_tracer = tracing_init_dentry(); d_tracer = tracing_init_dentry();
if (!d_tracer)
return 0;
trace_create_file("trace_options", 0644, d_tracer, trace_create_file("trace_options", 0644, d_tracer,
NULL, &tracing_iter_fops); NULL, &tracing_iter_fops);
......
...@@ -431,6 +431,8 @@ static __init int stack_trace_init(void) ...@@ -431,6 +431,8 @@ static __init int stack_trace_init(void)
struct dentry *d_tracer; struct dentry *d_tracer;
d_tracer = tracing_init_dentry(); d_tracer = tracing_init_dentry();
if (!d_tracer)
return 0;
trace_create_file("stack_max_size", 0644, d_tracer, trace_create_file("stack_max_size", 0644, d_tracer,
&max_stack_size, &stack_max_size_fops); &max_stack_size, &stack_max_size_fops);
......
...@@ -307,6 +307,8 @@ static int tracing_stat_init(void) ...@@ -307,6 +307,8 @@ static int tracing_stat_init(void)
struct dentry *d_tracing; struct dentry *d_tracing;
d_tracing = tracing_init_dentry(); d_tracing = tracing_init_dentry();
if (!d_tracing)
return 0;
stat_dir = debugfs_create_dir("trace_stat", d_tracing); stat_dir = debugfs_create_dir("trace_stat", d_tracing);
if (!stat_dir) if (!stat_dir)
......
Markdown is supported
0%
or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment