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authorNamhyung Kim <namhyung.kim@lge.com>2013-04-10 09:18:12 +0900
committerSteven Rostedt <rostedt@goodmis.org>2013-04-12 23:02:32 -0400
commited6f1c996bfe4b6e520cf7a74b51cd6988d84420 (patch)
tree1d9da2d98d5e94cd9b6606cbf8f721925c53164e /kernel/trace/trace_stack.c
parentf1943977e6648c1d42a78eda4ba4429a2bc0b786 (diff)
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>
Diffstat (limited to 'kernel/trace/trace_stack.c')
-rw-r--r--kernel/trace/trace_stack.c2
1 files changed, 2 insertions, 0 deletions
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);