diff --git a/kernel/trace/trace_kprobe.c b/kernel/trace/trace_kprobe.c
index 51efc79..21bafd4 100644
--- a/kernel/trace/trace_kprobe.c
+++ b/kernel/trace/trace_kprobe.c
@@ -1012,7 +1012,7 @@
 {
 	struct dynevent_arg arg;
 	va_list args;
-	int ret;
+	int ret = 0;
 
 	if (cmd->type != DYNEVENT_TYPE_KPROBE)
 		return -EINVAL;