1 files changed, 16 insertions, 23 deletions

diff --git a/sound/firewire/fireworks/fireworks_midi.c b/sound/firewire/fireworks/fireworks_midi.c
index 350bf4d299c2..405106a6aef9 100644
--- a/sound/firewire/fireworks/fireworks_midi.c
+++ b/sound/firewire/fireworks/fireworks_midi.c
@@ -14,20 +14,19 @@ static int midi_open(struct snd_rawmidi_substream *substream)
 
 	err = snd_efw_stream_lock_try(efw);
 	if (err < 0)
-		goto end;
-
-	mutex_lock(&efw->mutex);
-	err = snd_efw_stream_reserve_duplex(efw, 0, 0, 0);
-	if (err >= 0) {
-		++efw->substreams_counter;
-		err = snd_efw_stream_start_duplex(efw);
-		if (err < 0)
-			--efw->substreams_counter;
+		return err;
+
+	scoped_guard(mutex, &efw->mutex) {
+		err = snd_efw_stream_reserve_duplex(efw, 0, 0, 0);
+		if (err >= 0) {
+			++efw->substreams_counter;
+			err = snd_efw_stream_start_duplex(efw);
+			if (err < 0)
+				--efw->substreams_counter;
+		}
 	}
-	mutex_unlock(&efw->mutex);
 	if (err < 0)
 		snd_efw_stream_lock_release(efw);
-end:
 	return err;
 }
 
@@ -35,10 +34,10 @@ static int midi_close(struct snd_rawmidi_substream *substream)
 {
 	struct snd_efw *efw = substream->rmidi->private_data;
 
-	mutex_lock(&efw->mutex);
-	--efw->substreams_counter;
-	snd_efw_stream_stop_duplex(efw);
-	mutex_unlock(&efw->mutex);
+	scoped_guard(mutex, &efw->mutex) {
+		--efw->substreams_counter;
+		snd_efw_stream_stop_duplex(efw);
+	}
 
 	snd_efw_stream_lock_release(efw);
 	return 0;
@@ -47,9 +46,8 @@ static int midi_close(struct snd_rawmidi_substream *substream)
 static void midi_capture_trigger(struct snd_rawmidi_substream *substrm, int up)
 {
 	struct snd_efw *efw = substrm->rmidi->private_data;
-	unsigned long flags;
 
-	spin_lock_irqsave(&efw->lock, flags);
+	guard(spinlock_irqsave)(&efw->lock);
 
 	if (up)
 		amdtp_am824_midi_trigger(&efw->tx_stream,
@@ -57,16 +55,13 @@ static void midi_capture_trigger(struct snd_rawmidi_substream *substrm, int up)
 	else
 		amdtp_am824_midi_trigger(&efw->tx_stream,
 					  substrm->number, NULL);
-
-	spin_unlock_irqrestore(&efw->lock, flags);
 }
 
 static void midi_playback_trigger(struct snd_rawmidi_substream *substrm, int up)
 {
 	struct snd_efw *efw = substrm->rmidi->private_data;
-	unsigned long flags;
 
-	spin_lock_irqsave(&efw->lock, flags);
+	guard(spinlock_irqsave)(&efw->lock);
 
 	if (up)
 		amdtp_am824_midi_trigger(&efw->rx_stream,
@@ -74,8 +69,6 @@ static void midi_playback_trigger(struct snd_rawmidi_substream *substrm, int up)
 	else
 		amdtp_am824_midi_trigger(&efw->rx_stream,
 					 substrm->number, NULL);
-
-	spin_unlock_irqrestore(&efw->lock, flags);
 }
 
 static void set_midi_substream_names(struct snd_efw *efw,