1 files changed, 11 insertions, 28 deletions

diff --git a/sound/firewire/oxfw/oxfw-hwdep.c b/sound/firewire/oxfw/oxfw-hwdep.c
index a0fe99618554..f8ac362fc73a 100644
--- a/sound/firewire/oxfw/oxfw-hwdep.c
+++ b/sound/firewire/oxfw/oxfw-hwdep.c
@@ -53,18 +53,14 @@ static __poll_t hwdep_poll(struct snd_hwdep *hwdep, struct file *file,
 			       poll_table *wait)
 {
 	struct snd_oxfw *oxfw = hwdep->private_data;
-	__poll_t events;
 
 	poll_wait(file, &oxfw->hwdep_wait, wait);
 
-	spin_lock_irq(&oxfw->lock);
+	guard(spinlock_irq)(&oxfw->lock);
 	if (oxfw->dev_lock_changed)
-		events = EPOLLIN | EPOLLRDNORM;
+		return EPOLLIN | EPOLLRDNORM;
 	else
-		events = 0;
-	spin_unlock_irq(&oxfw->lock);
-
-	return events;
+		return 0;
 }
 
 static int hwdep_get_info(struct snd_oxfw *oxfw, void __user *arg)
@@ -88,48 +84,35 @@ static int hwdep_get_info(struct snd_oxfw *oxfw, void __user *arg)
 
 static int hwdep_lock(struct snd_oxfw *oxfw)
 {
-	int err;
-
-	spin_lock_irq(&oxfw->lock);
+	guard(spinlock_irq)(&oxfw->lock);
 
 	if (oxfw->dev_lock_count == 0) {
 		oxfw->dev_lock_count = -1;
-		err = 0;
+		return 0;
 	} else {
-		err = -EBUSY;
+		return -EBUSY;
 	}
-
-	spin_unlock_irq(&oxfw->lock);
-
-	return err;
 }
 
 static int hwdep_unlock(struct snd_oxfw *oxfw)
 {
-	int err;
-
-	spin_lock_irq(&oxfw->lock);
+	guard(spinlock_irq)(&oxfw->lock);
 
 	if (oxfw->dev_lock_count == -1) {
 		oxfw->dev_lock_count = 0;
-		err = 0;
+		return 0;
 	} else {
-		err = -EBADFD;
+		return -EBADFD;
 	}
-
-	spin_unlock_irq(&oxfw->lock);
-
-	return err;
 }
 
 static int hwdep_release(struct snd_hwdep *hwdep, struct file *file)
 {
 	struct snd_oxfw *oxfw = hwdep->private_data;
 
-	spin_lock_irq(&oxfw->lock);
+	guard(spinlock_irq)(&oxfw->lock);
 	if (oxfw->dev_lock_count == -1)
 		oxfw->dev_lock_count = 0;
-	spin_unlock_irq(&oxfw->lock);
 
 	return 0;
 }
@@ -177,7 +160,7 @@ int snd_oxfw_create_hwdep(struct snd_oxfw *oxfw)
 	err = snd_hwdep_new(oxfw->card, oxfw->card->driver, 0, &hwdep);
 	if (err < 0)
 		goto end;
-	strcpy(hwdep->name, oxfw->card->driver);
+	strscpy(hwdep->name, oxfw->card->driver);
 	hwdep->iface = SNDRV_HWDEP_IFACE_FW_OXFW;
 	hwdep->ops = hwdep_ops;
 	hwdep->private_data = oxfw;