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path: root/kernel/trace/trace_sched_wakeup.c
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Diffstat (limited to 'kernel/trace/trace_sched_wakeup.c')
-rw-r--r--kernel/trace/trace_sched_wakeup.c16
1 files changed, 6 insertions, 10 deletions
diff --git a/kernel/trace/trace_sched_wakeup.c b/kernel/trace/trace_sched_wakeup.c
index bf1cb80742ae..e3f2e4f56faa 100644
--- a/kernel/trace/trace_sched_wakeup.c
+++ b/kernel/trace/trace_sched_wakeup.c
@@ -138,12 +138,10 @@ static int wakeup_graph_entry(struct ftrace_graph_ent *trace,
return 0;
calltime = fgraph_reserve_data(gops->idx, sizeof(*calltime));
- if (!calltime)
- return 0;
-
- *calltime = trace_clock_local();
-
- ret = __trace_graph_entry(tr, trace, trace_ctx);
+ if (calltime) {
+ *calltime = trace_clock_local();
+ ret = __trace_graph_entry(tr, trace, trace_ctx);
+ }
local_dec(&data->disabled);
preempt_enable_notrace();
@@ -169,12 +167,10 @@ static void wakeup_graph_return(struct ftrace_graph_ret *trace,
rettime = trace_clock_local();
calltime = fgraph_retrieve_data(gops->idx, &size);
- if (!calltime)
- return;
+ if (calltime)
+ __trace_graph_return(tr, trace, trace_ctx, *calltime, rettime);
- __trace_graph_return(tr, trace, trace_ctx, *calltime, rettime);
local_dec(&data->disabled);
-
preempt_enable_notrace();
return;
}