3 files changed, 4 insertions, 1 deletions
diff --git a/sound/firewire/fireface/ff-transaction.c b/sound/firewire/fireface/ff-transaction.c
index d3fde813ce17..0506755891ce 100644
--- a/sound/firewire/fireface/ff-transaction.c
+++ b/sound/firewire/fireface/ff-transaction.c
@@ -156,7 +156,7 @@ static int allocate_own_address(struct snd_ff *ff, int i)
 	struct fw_address_region midi_msg_region;
 	int err;
 
-	ff->async_handler.length = SND_FF_MAXIMIM_MIDI_QUADS * 4;
+	ff->async_handler.length = ff->spec->midi_addr_range;
 	ff->async_handler.address_callback = handle_midi_msg;
 	ff->async_handler.callback_data = ff;
 
diff --git a/sound/firewire/fireface/ff.c b/sound/firewire/fireface/ff.c
index fd9c980e3cf4..c09a4875aa86 100644
--- a/sound/firewire/fireface/ff.c
+++ b/sound/firewire/fireface/ff.c
@@ -159,6 +159,7 @@ static const struct snd_ff_spec spec_ff800 = {
 	.midi_out_ports = 1,
 	.protocol = &snd_ff_protocol_ff800,
 	.midi_high_addr = 0x000200000320ull,
+	.midi_addr_range = 12,
 };
 
 static const struct snd_ff_spec spec_ff400 = {
@@ -169,6 +170,7 @@ static const struct snd_ff_spec spec_ff400 = {
 	.midi_out_ports = 2,
 	.protocol = &snd_ff_protocol_ff400,
 	.midi_high_addr = 0x0000801003f4ull,
+	.midi_addr_range = SND_FF_MAXIMIM_MIDI_QUADS * 4,
 };
 
 static const struct snd_ff_spec spec_ucx = {
diff --git a/sound/firewire/fireface/ff.h b/sound/firewire/fireface/ff.h
index ddcffb8d85c6..b86ca4fb7d9b 100644
--- a/sound/firewire/fireface/ff.h
+++ b/sound/firewire/fireface/ff.h
@@ -54,6 +54,7 @@ struct snd_ff_spec {
 
 	const struct snd_ff_protocol *protocol;
 	u64 midi_high_addr;
+	u8 midi_addr_range;
 };
 
 struct snd_ff {