diff --git a/sound/core/timer.c b/sound/core/timer.c
index 306a93dea20a..cc3c08d17ab1 100644
--- a/sound/core/timer.c
+++ b/sound/core/timer.c
@@ -1223,6 +1223,7 @@ static void snd_timer_user_ccallback(struct snd_timer_instance *timeri,
 		tu->tstamp = *tstamp;
 	if ((tu->filter & (1 << event)) == 0 || !tu->tread)
 		return;
+	memset(&r1, 0, sizeof(r1));
 	r1.event = event;
 	r1.tstamp = *tstamp;
 	r1.val = resolution;