diff --git a/sound/firewire/amdtp-stream.c b/sound/firewire/amdtp-stream.c
index c72b2a754775..7fc51f829ecc 100644
--- a/sound/firewire/amdtp-stream.c
+++ b/sound/firewire/amdtp-stream.c
@@ -172,6 +172,9 @@ static int apply_constraint_to_size(struct snd_pcm_hw_params *params,
 			step = max(step, amdtp_syt_intervals[i]);
 	}
 
+	if (step == 0)
+		return -EINVAL;
+
 	t.min = roundup(s->min, step);
 	t.max = rounddown(s->max, step);
 	t.integer = 1;