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-rw-r--r--kernel/trace/trace_kprobe.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/kernel/trace/trace_kprobe.c b/kernel/trace/trace_kprobe.c
index 1b79d1c15726..8b27c9849b42 100644
--- a/kernel/trace/trace_kprobe.c
+++ b/kernel/trace/trace_kprobe.c
@@ -925,14 +925,17 @@ static int create_trace_probe(int argc, char **argv)
pr_info("Delete command needs an event name.\n");
return -EINVAL;
}
+ mutex_lock(&probe_lock);
tp = find_probe_event(event, group);
if (!tp) {
+ mutex_unlock(&probe_lock);
pr_info("Event %s/%s doesn't exist.\n", group, event);
return -ENOENT;
}
/* delete an event */
unregister_trace_probe(tp);
free_trace_probe(tp);
+ mutex_unlock(&probe_lock);
return 0;
}