ALSA: oxfw: remove an unnecessary condition in hwdep_read()

Smatch complains that "count" isn't clamped properly and
"oxfw->dev_lock_changed" is false then it leads to an information
leak.  But it turns out that "oxfw->dev_lock_changed" is always
set and the condition can be removed.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Link: https://lore.kernel.org/r/YA6ntkBxT/4DJ4YK@mwandaSigned-off-by: Takashi Iwai <tiwai@suse.de>

sound/firewire/oxfw/oxfw-hwdep.c

@@ -35,13 +35,11 @@ static long hwdep_read(struct snd_hwdep *hwdep, char __user *buf,  long count,
 	}
 
 	memset(&event, 0, sizeof(event));
-	if (oxfw->dev_lock_changed) {
-		event.lock_status.type = SNDRV_FIREWIRE_EVENT_LOCK_STATUS;
-		event.lock_status.status = (oxfw->dev_lock_count > 0);
-		oxfw->dev_lock_changed = false;
+	event.lock_status.type = SNDRV_FIREWIRE_EVENT_LOCK_STATUS;
+	event.lock_status.status = (oxfw->dev_lock_count > 0);
+	oxfw->dev_lock_changed = false;
 
-		count = min_t(long, count, sizeof(event.lock_status));
-	}
+	count = min_t(long, count, sizeof(event.lock_status));
 
 	spin_unlock_irq(&oxfw->lock);