diff options
Diffstat (limited to 'arch/s390/kernel/ftrace.c')
| -rw-r--r-- | arch/s390/kernel/ftrace.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/s390/kernel/ftrace.c b/arch/s390/kernel/ftrace.c index 708c772b086..b86bb8823f1 100644 --- a/arch/s390/kernel/ftrace.c +++ b/arch/s390/kernel/ftrace.c @@ -156,6 +156,8 @@ unsigned long prepare_ftrace_return(unsigned long parent, unsigned long ip) { struct ftrace_graph_ent trace; + if (unlikely(ftrace_graph_is_dead())) + goto out; if (unlikely(atomic_read(¤t->tracing_graph_pause))) goto out; ip = (ip & PSW_ADDR_INSN) - MCOUNT_INSN_SIZE; |