Linux-libre 4.6.2-gnu

2 files changed, 5 insertions, 4 deletions

diff --git a/sound/firewire/fireworks/fireworks.c b/sound/firewire/fireworks/fireworks.c
index d5b19bc11..8f27b6750 100644
--- a/sound/firewire/fireworks/fireworks.c
+++ b/sound/firewire/fireworks/fireworks.c
@@ -301,7 +301,10 @@ static void efw_update(struct fw_unit *unit)
 	struct snd_efw *efw = dev_get_drvdata(&unit->device);
 
 	snd_efw_transaction_bus_reset(efw->unit);
+
+	mutex_lock(&efw->mutex);
 	snd_efw_stream_update_duplex(efw);
+	mutex_unlock(&efw->mutex);
 }
 
 static void efw_remove(struct fw_unit *unit)
diff --git a/sound/firewire/fireworks/fireworks_stream.c b/sound/firewire/fireworks/fireworks_stream.c
index 968a40a1b..425db8d88 100644
--- a/sound/firewire/fireworks/fireworks_stream.c
+++ b/sound/firewire/fireworks/fireworks_stream.c
@@ -313,12 +313,10 @@ void snd_efw_stream_stop_duplex(struct snd_efw *efw)
 
 void snd_efw_stream_update_duplex(struct snd_efw *efw)
 {
-	if ((cmp_connection_update(&efw->out_conn) < 0) ||
-	    (cmp_connection_update(&efw->in_conn) < 0)) {
-		mutex_lock(&efw->mutex);
+	if (cmp_connection_update(&efw->out_conn) < 0 ||
+	    cmp_connection_update(&efw->in_conn) < 0) {
 		stop_stream(efw, &efw->rx_stream);
 		stop_stream(efw, &efw->tx_stream);
-		mutex_unlock(&efw->mutex);
 	} else {
 		amdtp_stream_update(&efw->rx_stream);
 		amdtp_stream_update(&efw->tx_stream);