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Diffstat (limited to 'kernel/trace/trace_dynevent.c')
-rw-r--r--kernel/trace/trace_dynevent.c11
1 files changed, 9 insertions, 2 deletions
diff --git a/kernel/trace/trace_dynevent.c b/kernel/trace/trace_dynevent.c
index d06854bd32b3..c4dfbc293bae 100644
--- a/kernel/trace/trace_dynevent.c
+++ b/kernel/trace/trace_dynevent.c
@@ -144,9 +144,16 @@ static int create_dyn_event(const char *raw_command)
if (!ret || ret != -ECANCELED)
break;
}
- mutex_unlock(&dyn_event_ops_mutex);
- if (ret == -ECANCELED)
+ if (ret == -ECANCELED) {
+ static const char *err_msg[] = {"No matching dynamic event type"};
+
+ /* Wrong dynamic event. Leave an error message. */
+ tracing_log_err(NULL, "dynevent", raw_command, err_msg,
+ 0, 0);
ret = -EINVAL;
+ }
+
+ mutex_unlock(&dyn_event_ops_mutex);
return ret;
}