1 files changed, 11 insertions, 28 deletions

diff --git a/sound/firewire/bebob/bebob_hwdep.c b/sound/firewire/bebob/bebob_hwdep.c
index 6f9331655d43..216d1fceb6e7 100644
--- a/sound/firewire/bebob/bebob_hwdep.c
+++ b/sound/firewire/bebob/bebob_hwdep.c
@@ -53,18 +53,14 @@ static __poll_t
 hwdep_poll(struct snd_hwdep *hwdep, struct file *file, poll_table *wait)
 {
 	struct snd_bebob *bebob = hwdep->private_data;
-	__poll_t events;
 
 	poll_wait(file, &bebob->hwdep_wait, wait);
 
-	spin_lock_irq(&bebob->lock);
+	guard(spinlock_irq)(&bebob->lock);
 	if (bebob->dev_lock_changed)
-		events = EPOLLIN | EPOLLRDNORM;
+		return EPOLLIN | EPOLLRDNORM;
 	else
-		events = 0;
-	spin_unlock_irq(&bebob->lock);
-
-	return events;
+		return 0;
 }
 
 static int
@@ -90,39 +86,27 @@ hwdep_get_info(struct snd_bebob *bebob, void __user *arg)
 static int
 hwdep_lock(struct snd_bebob *bebob)
 {
-	int err;
-
-	spin_lock_irq(&bebob->lock);
+	guard(spinlock_irq)(&bebob->lock);
 
 	if (bebob->dev_lock_count == 0) {
 		bebob->dev_lock_count = -1;
-		err = 0;
+		return 0;
 	} else {
-		err = -EBUSY;
+		return -EBUSY;
 	}
-
-	spin_unlock_irq(&bebob->lock);
-
-	return err;
 }
 
 static int
 hwdep_unlock(struct snd_bebob *bebob)
 {
-	int err;
-
-	spin_lock_irq(&bebob->lock);
+	guard(spinlock_irq)(&bebob->lock);
 
 	if (bebob->dev_lock_count == -1) {
 		bebob->dev_lock_count = 0;
-		err = 0;
+		return 0;
 	} else {
-		err = -EBADFD;
+		return -EBADFD;
 	}
-
-	spin_unlock_irq(&bebob->lock);
-
-	return err;
 }
 
 static int
@@ -130,10 +114,9 @@ hwdep_release(struct snd_hwdep *hwdep, struct file *file)
 {
 	struct snd_bebob *bebob = hwdep->private_data;
 
-	spin_lock_irq(&bebob->lock);
+	guard(spinlock_irq)(&bebob->lock);
 	if (bebob->dev_lock_count == -1)
 		bebob->dev_lock_count = 0;
-	spin_unlock_irq(&bebob->lock);
 
 	return 0;
 }
@@ -183,7 +166,7 @@ int snd_bebob_create_hwdep_device(struct snd_bebob *bebob)
 	err = snd_hwdep_new(bebob->card, "BeBoB", 0, &hwdep);
 	if (err < 0)
 		goto end;
-	strcpy(hwdep->name, "BeBoB");
+	strscpy(hwdep->name, "BeBoB");
 	hwdep->iface = SNDRV_HWDEP_IFACE_FW_BEBOB;
 	hwdep->ops = ops;
 	hwdep->private_data = bebob;