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authorAlexander Z Lam <azl@google.com>2013-07-01 19:37:54 -0700
committerSteven Rostedt <rostedt@goodmis.org>2013-07-01 23:30:08 -0400
commita82274151af2b075163e3c42c828529dee311487 (patch)
tree0923f9f765266925e9c800a461917ea312d3cc16 /kernel/trace/trace.c
parent2d71619c59fac95a5415a326162fa046161b938c (diff)
downloadop-kernel-dev-a82274151af2b075163e3c42c828529dee311487.zip
op-kernel-dev-a82274151af2b075163e3c42c828529dee311487.tar.gz
tracing: Protect ftrace_trace_arrays list in trace_events.c
There are multiple places where the ftrace_trace_arrays list is accessed in trace_events.c without the trace_types_lock held. Link: http://lkml.kernel.org/r/1372732674-22726-1-git-send-email-azl@google.com Cc: Vaibhav Nagarnaik <vnagarnaik@google.com> Cc: David Sharp <dhsharp@google.com> Cc: Alexander Z Lam <lambchop468@gmail.com> Cc: stable@vger.kernel.org # 3.10 Signed-off-by: Alexander Z Lam <azl@google.com> Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Diffstat (limited to 'kernel/trace/trace.c')
-rw-r--r--kernel/trace/trace.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c
index e04e711..e36da7f 100644
--- a/kernel/trace/trace.c
+++ b/kernel/trace/trace.c
@@ -266,7 +266,7 @@ static struct tracer *trace_types __read_mostly;
/*
* trace_types_lock is used to protect the trace_types list.
*/
-static DEFINE_MUTEX(trace_types_lock);
+DEFINE_MUTEX(trace_types_lock);
/*
* serialize the access of the ring buffer
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