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-rw-r--r--kernel/trace/trace.c2
-rw-r--r--kernel/trace/trace_stack.c2
-rw-r--r--kernel/trace/trace_stat.c2
3 files changed, 6 insertions, 0 deletions
diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c
index 66338c4f7f4..7713d1b33da 100644
--- a/kernel/trace/trace.c
+++ b/kernel/trace/trace.c
@@ -5028,6 +5028,8 @@ static __init int tracer_init_debugfs(void)
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);
diff --git a/kernel/trace/trace_stack.c b/kernel/trace/trace_stack.c
index 4141973061a..b20428c5efe 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)