diff --git a/sound/firewire/bebob/bebob.h b/sound/firewire/bebob/bebob.h
index 91b26b0c649a259f720ea97b031c62cfe47fd990..6aef1520d720b3538f5eceb3870ea80766bac689 100644
--- a/sound/firewire/bebob/bebob.h
+++ b/sound/firewire/bebob/bebob.h
@@ -211,7 +211,7 @@ int snd_bebob_stream_discover(struct snd_bebob *bebob);
 int snd_bebob_stream_map(struct snd_bebob *bebob,
 			 struct amdtp_stream *stream);
 int snd_bebob_stream_init_duplex(struct snd_bebob *bebob);
-int snd_bebob_stream_start_duplex(struct snd_bebob *bebob, int rate);
+int snd_bebob_stream_start_duplex(struct snd_bebob *bebob, unsigned int rate);
 void snd_bebob_stream_stop_duplex(struct snd_bebob *bebob);
 void snd_bebob_stream_update_duplex(struct snd_bebob *bebob);
 void snd_bebob_stream_destroy_duplex(struct snd_bebob *bebob);
diff --git a/sound/firewire/bebob/bebob_stream.c b/sound/firewire/bebob/bebob_stream.c
index 452e93684e49116e6be7186387d3923c80497c41..fbe938c79e3a5e84e4fbb25f0f679cc14e032788 100644
--- a/sound/firewire/bebob/bebob_stream.c
+++ b/sound/firewire/bebob/bebob_stream.c
@@ -483,7 +483,7 @@ int snd_bebob_stream_init_duplex(struct snd_bebob *bebob)
 	return err;
 }
 
-int snd_bebob_stream_start_duplex(struct snd_bebob *bebob, int rate)
+int snd_bebob_stream_start_duplex(struct snd_bebob *bebob, unsigned int rate)
 {
 	struct snd_bebob_rate_spec *rate_spec = bebob->spec->rate;
 	struct amdtp_stream *master, *slave;
diff --git a/sound/firewire/fireworks/fireworks.h b/sound/firewire/fireworks/fireworks.h
index 14395e3e466971b4625be8217b39858fbdcdd3a8..d2b36be4d2f86a1b996259417fe4165f0ce996fd 100644
--- a/sound/firewire/fireworks/fireworks.h
+++ b/sound/firewire/fireworks/fireworks.h
@@ -205,7 +205,7 @@ int snd_efw_command_get_sampling_rate(struct snd_efw *efw, unsigned int *rate);
 int snd_efw_command_set_sampling_rate(struct snd_efw *efw, unsigned int rate);
 
 int snd_efw_stream_init_duplex(struct snd_efw *efw);
-int snd_efw_stream_start_duplex(struct snd_efw *efw, int sampling_rate);
+int snd_efw_stream_start_duplex(struct snd_efw *efw, unsigned int rate);
 void snd_efw_stream_stop_duplex(struct snd_efw *efw);
 void snd_efw_stream_update_duplex(struct snd_efw *efw);
 void snd_efw_stream_destroy_duplex(struct snd_efw *efw);
diff --git a/sound/firewire/fireworks/fireworks_stream.c b/sound/firewire/fireworks/fireworks_stream.c
index eaab8f6bc8b6b5ed6cb399304b5c47eec14b36af..541569022a7c319fff4464ec57dab44d65993f58 100644
--- a/sound/firewire/fireworks/fireworks_stream.c
+++ b/sound/firewire/fireworks/fireworks_stream.c
@@ -195,7 +195,7 @@ int snd_efw_stream_init_duplex(struct snd_efw *efw)
 	return err;
 }
 
-int snd_efw_stream_start_duplex(struct snd_efw *efw, int rate)
+int snd_efw_stream_start_duplex(struct snd_efw *efw, unsigned int rate)
 {
 	struct amdtp_stream *master, *slave;
 	atomic_t *slave_substreams;