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authorBrian Norris <computersforpeace@gmail.com>2014-08-19 11:57:23 -0700
committerBrian Norris <computersforpeace@gmail.com>2014-08-19 11:57:23 -0700
commit5b49ab3e03f68eb49db4bce6290e5707b7f6c6f3 (patch)
tree090c7c069bc6c0f2b368ed8d0af861c275525411 /arch/sh/kernel/ftrace.c
parentb25046b1e5e3f1423434da77ccc859f2f779d1ce (diff)
parent54ea17a597b00e46b3720e75dd7595cd5dfa5670 (diff)
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Merge l2-mtd/next into l2-mtd/master
Diffstat (limited to 'arch/sh/kernel/ftrace.c')
-rw-r--r--arch/sh/kernel/ftrace.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/sh/kernel/ftrace.c b/arch/sh/kernel/ftrace.c
index 3c74f53db6db..079d70e6d74b 100644
--- a/arch/sh/kernel/ftrace.c
+++ b/arch/sh/kernel/ftrace.c
@@ -344,6 +344,9 @@ void prepare_ftrace_return(unsigned long *parent, unsigned long self_addr)
struct ftrace_graph_ent trace;
unsigned long return_hooker = (unsigned long)&return_to_handler;
+ if (unlikely(ftrace_graph_is_dead()))
+ return;
+
if (unlikely(atomic_read(&current->tracing_graph_pause)))
return;